Search Results

Search found 40441 results on 1618 pages for 'function templates'.

Page 455/1618 | < Previous Page | 451 452 453 454 455 456 457 458 459 460 461 462  | Next Page >

  • Delay PHP execution until JavaScript cookie set?

    - by Adam184
    I am trying to delay PHP execution until a cookie is set through JavaScript. The code is below, I trimmed the createCookie JavaScript function for simplicity (I've tested the function itself and it works). <?php if(!isset($_COOKIE["test"])) { ?> <script type="text/javascript"> $(function() { // createCookie script createCookie("test", 1, 3600); }); </script> <?php // Reload the page to ensure cookie was set if(!isset($_COOKIE["test"])) { header("Location: http://localhost/asdf.php/"); } } ?> At first I had no idea why this didn't work, however after using microtime() I figured out that the PHP after the <script> was executing before the jQuery ready function. I reduced my code significantly to show a simple version that is answerable, I am well aware that I am able to use setcookie() in PHP, the requirements for the cookie are client-side. I understand mixing PHP and JavaScript is incorrect, but any help on how to make this work (is there a PHP delay? - I tried sleep(), didn't work and didn't think it would work, since the scripts would be delayed as well) would be greatly appreciated.

    Read the article

  • Printing an Image embedded into an asp.net page. C#

    - by user1683846
    I am looking to print using C#, micorsoft visual studio, asp.net. The goal:- I am trying to print all pages in a fax document. Format:- The fax document is received as a single .tiff file with multiple pages. What needs to be done:- I need to iterate each page in the .tiff image and print them all. // This function will iterate all pages, one at a time. // protected void PrintAll_Click(object sender, EventArgs e) { // counts number of pages in the fax document.// int number = _FaxPages.Count; // for loop to iterate through each page. // for (int i = 0; i < number; i++) { string _FaxId = Page.Request["FaxId"]; _PageIndex = i; imgFax.ImageUrl = "ShowFax.ashx?n=" + _FaxId + "&f=" + _PageIndex + "&mw=750"; PrintAll.Attributes.Add("onclick", "return printing()"); } } and In my Java script I have: function printing() { window.print(); } Now the issues are: <1 The function only prints one page (the very last page of the tiff file)....and it prints the entire window and not just the embedded .tiff image in the entire web browser window. Any Ideas of how to go about just printing the .tiff embedded image instead of the entire web browser window. <2 Although my for loop iterates through the pages. The print function is only called after the loop has iterated through all the pages and stopped on the final page (say page 6/6). And then it only prints that last page (along with the rest of the contents on the browser window). This is not what I want to happen... I dont want to print all the excess material on the browser window such as buttons, links etc... I just want the embedded .tiff image from the browser window.

    Read the article

  • Angular throws "Error: Invalid argument." in IE

    - by przno
    I have a directive which takes element's text and places wbr elements after every 10th character. I'm using it for example on table cells with long text (e.g. URLs), so it does not span over the table. Code of the directive: myApp.directive('myWbr', function ($interpolate) { return { restrict: 'A', link: function (scope, element, attrs) { // get the interpolated text of HTML element var expression = $interpolate(element.text()); // get new text, which has <wbr> element on every 10th position var addWbr = function (inputText) { var newText = ''; for (var i = 0; i < inputText.length; i++) { if ((i !== 0) && (i % 10 === 0)) newText += '<wbr>'; // no end tag newText += inputText[i]; } return newText; }; scope.$watch(function (scope) { // replace element's content with the new one, which contains <wbr>s element.html(addWbr(expression(scope))); }); } }; }); Works fine except in IE (I have tried IE8 and IE9), where it throws an error to the console: Error: Invalid argument. Here is jsFiddle, when clicking on the button you can see the error in console. So obvious question: why is the error there, what is the source of it, and why only in IE? (Bonus question: how can I make IE dev tools to tell me more about error, like the line from source code, because it took me some time to locate it, Error: Invalid argument. does not tell much about the origin.) P.S.: I know IE does not know the wbr at all, but that is not the issue. Edit: in my real application I have re-written the directive to not to look on element's text and modify that, but rather pass the input text via attribute, and works fine now in all browsers. But I'm still curious why the original solution was giving that error in IE, thus starting the bounty.

    Read the article

  • Does using functional languages help against computing values repeatedly?

    - by sharptooth
    Consider a function f(x,y): f(x,0) = x*x; f(0,y) = y*(y + 1); f(x,y) = f(x,y-1) + f(x-1,y); If one tries to implement that recursively in some language like C++ he will encounter a problem. Suppose the function is first called with x = x0 and y = y0. Then for any pair (x,y) where 0 <= x < x0 and 0 <= y < y0 the intermediate values will be computed multiple times - recursive calls will form a huge tree in which multiple leaves will in fact contain the same pairs (x,y). For pairs (x,y) where x and y are both close to 0 values will be computed numerous times. For instance, I tested a similar function implemented in C++ - for x=20 and y=20 its computation takes about 4 hours (yes, four Earth hours!). Obviously the implementation can be rewritten in such way that repeated computation doesn't occur - either iteratively or with a cache table. The question is: will functional languages perform any better and avoid repeated computations when implementing a function like above recursively?

    Read the article

  • JQuery remove() not working with a two word id

    - by Programer
    I have a button <button onclick="takedown()"> take down </button> that creates a H1 and button with the id of the text in my text field and h1 at the end for the h1 and button at the end for the button the button has a onclick onclick="delete()". This is that function function takedown(){ note = document.getElementById("noteinput").value; idh1 = note + "h1"; idbutton = note + "button"; idcenter = note + "center"; $('<center id="' + idcenter + '"> <h1 id="' + idh1 + '">' + note + '</h1> <button id="'+ idbutton +'" onclick="deletenote()"> Delete </button> </center>').appendTo("body"); } For the delete function the remove() works only if the id of the button and the h1 is one word. function deletenote(){ // First setting var idbuttondelete = event.target.id; var idh1delete = idbuttondelete.replace("button", "h1"); // Removing the button, h1,center $('#' + idbuttondelete).remove(); $('#' + idh1delete).remove(); } Does anybody know whats wrong or how to use JQuery to delete something if it has a two word id.

    Read the article

  • Javascript ( jQuery ) Error: SyntaxError: missing ) after argument list

    - by Obmerk Kronen
    I have the simplest function : jQuery(document).ajaxSuccess(function(e, xhr, settings) { var widget_id_base = '099_cf_samurai_widget'; if(settings.data.search('action=save-widget') != -1 && settings.data.search('id_base=' + widget_id_base) != -1) { // alert(\'yay!'\); my_function_chosen_099(); } }); function my_function_chosen_099(){ jQuery(".chzn-select").chosen(); } which works just fine , but When I add the width Parameter like so : function my_function_chosen_k99(){ jQuery(".chzn-select").chosen(width:'95%'); } it gives me an error of: Error: SyntaxError: missing ) after argument list Source File: http://localhost/my-path/js/o99.chosen.init.js?ver=k99 Line: 20, Column: 41 Source Code: jQuery(".chzn-select").chosen(width:"95%"); .............................................| I have tried escaping: jQuery(".chzn-select").chosen(width:\"95%"\); and even double jQuery(".chzn-select").chosen(width:\\"95%"\\); and in my desperation, even jQuery(".chzn-select").chosen( width:"95%" ); I checked and rechecked the closing of brackets , and also tried with single quotes ' - but nothing . There appear to be a lot of similar questions here , but all I saw was escaping problems, ANd I have tried all that I know .. What is wrong here ?? I assume it is not a simple syntax error - or is it ? ( one which I can not find .. )

    Read the article

  • reading keyboard input without "consuming" it in x86 assembly

    - by Bob
    Ok so here the deal: I have an assignment regarding DOS and interrupts: I need to write a sort of key-logger function that can be called from C code. what it means is a c program would call an assembly function called startlog that would indicate to start logging the keys pressed until a function called endlog is called. the logging should work like this: write the ascii value of any key pressed without disturbing the C code between startlog and endlog, meaning that if the C code also needs to read the input (let's say by scanf, it would work ok). I managed to write the logger by changing the interrupt vector 9th entry (interrupt for keyboard press) to a function I wrote that writes the values to a file, and it works fine. however the C code does not get the input. Basically what i did is read the key pressed using int 21h, however after reading the ascii value it is "consumed" so I need a way to either simulate the key press again or read the value without "consuming" it so next time a key is read it reads the same key. (I described the code in english because it is long and clumsy assembly code)

    Read the article

  • How to store <TR> id value in array, when I toggle?

    - by James123
    I am toggling 'tr.subCategory1'and its siblings .RegText. at the same time I am trying to store its ids in the array like this list_Visible_Ids[$(this).attr('id')] = $(this).css('display') != 'none' ? 1 : null; (When I collapsed I need store 'null' in array at its id place, If I expand I need store I need store 1 at its id place). But everytime alert($(this).css('display')) showing block. How can I handle this?. So When I collapsed or expanded it is storing 1 only. $(document).ready(function() { $('tr[@class^=RegText]').hide().children('td'); list_Visible_Ids = []; var idsString, idsArray; idsString = $('#myVisibleRows').val(); idsArray = idsString.split(','); $.each(idsArray, function() { if (this != "" || this != null) { $('#' + this).siblings('.RegText').toggle(); list_Visible_Ids[this] = 1; } }); $('tr.subCategory1') .css("cursor", "pointer") .attr("title", "Click to expand/collapse") .click(function() { $(this).siblings('.RegText').toggle(); $(this).siblings('.VolumeRegText').toggle(); //alert($(this).css('display')) list_Visible_Ids[$(this).attr('id')] = $(this).css('display') != 'none' ? 1 : null; }); $('#form1').submit(function() { idsString = ''; for (var index in list_Visible_Ids) { idsString += (idsString != '' ? ',' : '') + index; } $('#myVisibleRows').val(idsString); form1.submit(); }); });

    Read the article

  • Image sprite not lining up in firefox

    - by Saif Bechan
    I am working with an image sprite to create my buttons. They work right in every browser except firefox. Lets say i have 2 spans next to eachother: <span class="spanleft"></span><span class="spanright"></span> and give them some styling(this is the actual code i use for the sprite) .spanleft{ background:url('/templates/default/img/auction/btn-toolbar.png') no-repeat 0 0; display:block; float:left; height:100px; width:13px; } .spanright{ background:url('/templates/default/img/auction/btn-toolbar.png') no-repeat 0 -104px; display:block; float:left; height:100px; width:30px; margin-left:0px; } Now this works in every browser i tested, the images line up great. But in firefox I get a small offset. Now i fiddled with the pixels a lot. Its not an offset of 1px, the offset is about 0.5 of a px. yeah. Ive made a screenshot of what i mean, and i'm going to put in the sprite for the buttons, they make lovely buttons, upstate,downstate,hover,disabled. You can use them in your projects. Here are the shots: This is the problem: Here is the image sprite: I hop this problem can be solved, i am working with FF 3.6. thanks guys!

    Read the article

  • C Population Count of unsigned 64-bit integer with a maximum value of 15

    - by BitTwiddler1011
    I use a population count (hamming weight) function intensively in a windows c application and have to optimize it as much as possible in order to boost performance. More than half the cases where I use the function I only need to know the value to a maximum of 15. The software will run on a wide range of processors, both old and new. I already make use of the POPCNT instruction when Intel's SSE4.2 or AMD's SSE4a is present, but would like to optimize the software implementation (used as a fall back if no SSE4 is present) as much as possible. Currently I have the following software implementation of the function: inline int population_count64(unsigned __int64 w) { w -= (w 1) & 0x5555555555555555ULL; w = (w & 0x3333333333333333ULL) + ((w 2) & 0x3333333333333333ULL); w = (w + (w 4)) & 0x0f0f0f0f0f0f0f0fULL; return int(w * 0x0101010101010101ULL) 56; } So to summarize: (1) I would like to know if it is possible to optimize this for the case when I only want to know the value to a maximum of 15. (2) Is there a faster software implementation (for both Intel and AMD CPU's) than the function above?

    Read the article

  • How can I make my Google Maps api v3 address search bar work by hitting the enter button on the keyboard?

    - by Gavin
    I'm developing a webpage and I would just like to make something more user friendly. I have a functional Google Maps api v3 and an address search bar. Currently, I have to use the mouse to select search to initialize the geocoding function. How can I make the map return a placemark by hitting the enter button on my keyboard? I just want to make it as user-friendly as possible. Here is the javascript and div, respectively, I created for the address bar: var geocoder; function initialize() { geocoder = new google.maps.Geocoder (); function codeAddress () { var address = document.getElementById ("address").value; geocoder.geocode ( { 'address': address}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { map.setCenter(results [0].geometry.location); marker.setPosition(results [0].geometry.location); map.setZoom(14); } else { alert("Geocode was not successful for the following reason: " + status); } }); } <div id="geocoder"> <input id="address" type="textbox" value=""> <input type="button" value="Search" onclick="codeAddress()"> </div> Thank you in advance for your help

    Read the article

  • Java scripts conflict on my home page

    - by naveen
    <script type="text/javascript" src="jquery-1.js"></script> <script type="text/javascript" src="mootools.js"></script> <script type="text/javascript" src="slideshow.js"></script> <script type="text/javascript"> //<![CDATA[ window.addEvent('domready', function(){ var data = { '1.jpg': { caption: 'Volcano Asención in Ometepe, Nicaragua.' }, '2.jpg': { caption: 'A Ceibu tree.' }, '3.jpg': { caption: 'The view from Volcano Maderas.' }, '4.jpg': { caption: 'Beer and ice cream.' } }; var myShow = new Slideshow('show', data, {controller: true, height: 400, hu: 'images/', thumbnails: true, width: 500}); }); //]]> </script> <script type="text/javascript"> $(document).ready(function() { //slides the element with class "menu_body" when paragraph with class "menu_head" is clicked $("#firstpane p.menu_head").click(function() { $(this).css({backgroundImage:"url(down.png)"}).next("div.menu_body").slideToggle(300).siblings("div.menu_body").slideUp("slow"); $(this).siblings().css({backgroundImage:"url(left.png)"}); }); //slides the element with class "menu_body" when mouse is over the paragraph $("#secondpane p.menu_head").mouseover(function() { $(this).css({backgroundImage:"url(down.png)"}).next("div.menu_body").slideDown(500).siblings("div.menu_body").slideUp("slow"); $(this).siblings().css({backgroundImage:"url(left.png)"}); }); }); </script> <!--[if lt IE 7]> <script type="text/javascript" src="unitpngfix.js"></script> <![endif]-->

    Read the article

  • using a href (html)tag along with PHP

    - by dexter
    i have tried: <?php include("delete.php") ?> <?php .... .... .... if($result=mysql_query($sql)) { echo "<table><th>Id</th><th>Name</th><th>Description</th><th>Unit Price</th>"; while($row = mysql_fetch_array($result)) { echo "<tr><td>".$row['Id']."</td><td>".$row['Name']."</td><td>".$row['Description']."</td><td>".$row['UnitPrice']."</td> <td><a href='delproduct($row[Id])' onclick = 'return MsgOkCancel()'>Delete</a></td></tr>"; echo "<br/>"; } } ?> following javascript is in the same page: <script type="text/javascript" language="javascript"> function MsgOkCancel() { if (confirm("Are You Sure You Want to Delete?")) { return true } else {return false} } </script> where delproduct is a javascript function in delete.php written like: <script type="javascript"> function delproduct(Id) { alert('Id '+ Id); } <script> ** after ** clicking Delete a okcancel message-box appear asking conformation ** but ** after clicking 'ok' it should execute statements inside delproduct function but it doesn't it gives error like: Object Not Found :The requested URL was not found on this server. what would be the problem? pls help, thanks

    Read the article

  • Is it possible to access the SMIL timer from javascript?

    - by Will
    I'm trying to use SMIL to animate the typing of text into a field embedded in a SVG. I tried the following code in both Chrome and a SMIL-enable Firefox nightly, but it has no effect: <svg xmlns="http://www.w3.org/2000/svg" xmlns:html="http://www.w3.org/1999/xhtml"> <foreignObject> <html:input type="text" value=""> <set attributeName="value" to="Hello World" begin="0" dur="10s" fill="freeze" /> </html:input> </foreignObject> </svg> The text field appears, but remains empty. So, I thought I would register for the beginEvent and do the substitution manually. To test the events, I added: <rect id="rect" x="0" y="0" width="10" height="10"> <animate id="dx" attributeName="x" attributeType="XML" begin="0s" dur="1s" fill="freeze" from="0" to="-10" /> </rect> As well as the javascript that made sense from the event model: window.addEventListener( 'load', function() { function listen( id ) { var elem = document.getElementById( id ) elem.addEventListener( 'beginEvent', function() { console.log( 'begin ' + id ) }, false ) elem.addEventListener( 'endEvent', function() { console.log( 'end ' + id ) }, false ) } listen( 'rect' ) listen( 'dx' ) }) But there's no events fired on either the rect or the animate in either browser. The next logical step seems to be to simulate the animation (ala. FakeSmile), but I want to use the browser's animation timer if at all possible.

    Read the article

  • Coding the R-ight way - avoiding the for loop

    - by mropa
    I am going through one of my .R files and by cleaning it up a little bit I am trying to get more familiar with writing the code the r-ight way. As a beginner, one of my favorite starting points is to get rid of the for() loops and try to transform the expression into a functional programming form. So here is the scenario: I am assembling a bunch of data.frames into a list for later usage. dataList <- list (dataA, dataB, dataC, dataD, dataE ) Now I like to take a look at each data.frame's column names and substitute certain character strings. Eg I like to substitute each "foo" and "bar" with "baz". At the moment I am getting the job done with a for() loop which looks a bit awkward. colnames(dataList[[1]]) [1] "foo" "code" "lp15" "bar" "lh15" colnames(dataList[[2]]) [1] "a" "code" "lp50" "ls50" "foo" matchVec <- c("foo", "bar") for (i in seq(dataList)) { for (j in seq(matchVec)) { colnames (dataList[[i]])[grep(pattern=matchVec[j], x=colnames (dataList[[i]]))] <- c("baz") } } Since I am working here with a list I thought about the lapply function. My attempts handling the job with the lapply function all seem to look alright but only at first sight. If I write f <- function(i, xList) { gsub(pattern=c("foo"), replacement=c("baz"), x=colnames(xList[[i]])) } lapply(seq(dataList), f, xList=dataList) the last line prints out almost what I am looking for. However, if i take another look at the actual names of the data.frames in dataList: lapply (dataList, colnames) I see that no changes have been made to the initial character strings. So how can I rewrite the for() loop and transform it into a functional programming form? And how do I substitute both strings, "foo" and "bar", in an efficient way? Since the gsub() function takes as its pattern argument only a character vector of length one.

    Read the article

  • How do I use Haml in a view in my new plugin?

    - by Eric
    I'm creating a new plugin for a jruby on rails application that will eventually be turned into a gem. Inside my plugin I have controllers, helpers and views. For my views I'd like to use Haml. The problem is that I can't seem to get it to recognize that they are haml templates. Is it even possible to do this? Is there a way for a plugin to have Haml as a dependency for its view? And by that I mean, I intend for the plugin that I'm creating to have a view created by the plugin, that can be used by the application developer. for example: vendor/ plugins/ my_plugin/ lib/ app/ views/ my_plugin_demo/ index.haml.html controllers/ my_plugin_demo_controller.rb helpers/ In my plugin's init.rb, I tried: require 'my_plugin' require 'haml' #doesn't seem to make a difference :( but that didn't seem to make any difference. Has anybody had any experience with this? I can't seem to find any documentation on how to make this work. Are plugin views restricted to .erb templates?

    Read the article

  • Jquery - Setting form select-field "selected" value only works after refresh

    - by frequent
    Hi, I want to use a form select-field for users to select their country of residence, which shows the IP based country as default value (plus the IP address next to it); Location info (ipinfodb.com) is working. I'm passing "country" and "ip" to the function, which should modify select-field and ip adress Problem: IP adress works, but the select-field only updates after I hit refresh. Can someone tell me why? Here is the code: HTML <select name="setup_changeCountry" id="setup_changeCountry"> <option value="AL-Albania">Albanien</option> <option value="AD-Andorra">Andorra</option> <option value="AM-Armenia">Armenien</option> <option value="AU-Australia">Australien</option> ... </select> <div class="setup_IPInfo"> <span>Your IP</span> <span class="ipAdress"> -- ip --</span> </div> Javascript/Jquery function morph(country,ip) >> passed from function, called on DOMContentLoaded { var ipAdress = ip; $('.ipAdress').text(ipAdress); var countryForm = country; $('#setup_changeCountry option').each(function() { if ($(this).val().substr(0,2) == countryForm) { $(this).attr('selected', "true"); } }); } Thanks for any clues on how to fix this. Frequent

    Read the article

  • MySQL connection attempt works fine in 5.2.9 but not in 5.3.0 - Help?

    - by Rich
    Hi, I'm having trouble making a secondary MySQL connection (to a separate, external DB) in my code. It works fine in PHP 5.2.9 but fails to connect in PHP 5.3.0. I'm aware of (at least some) of the changes needed to make successful MySQL connections in the newer version of PHP, and have succeeded before, so I'm not sure why it isn't working this time. I already have a db connection open to a local database. This function below is then used to make an additional connection to a separate, remote directory. The included config file simply contains the external database details (host, user, pass and name). I have checked and it is being included correctly. function connectDP() { global $dpConnection; include("secondary_db_config.php); $dpConnection = mysql_connect($dp_dbHost, $dp_dbUser, $dp_dbPass, true) or DIE("ERROR: Unable to connect to Deployment Platform"); mysql_select_db($dp_dbName, $dpConnection) or DIE("ERROR 006: Unable to select Deployment Platform Database"); } I then attempt to make this new connection simply by calling this function externally: connectDP(); But when loading the page (in 5.3.0), I get the message: ERROR: Unable to connect to Deployment Platform I'm using the optional new_link flag boolean as the fourth argument in the mysql_connect() function and it's still not working. I've been wracking my brain this morning trying to figure out why this connection doesn't work (while I've done something very similar elsewhere to a separate second database that does work). Any help would be appreciated. Thanks! Rich

    Read the article

  • Catch/Intercept all mouse clicks

    - by Hallik
    I have this simple script that catches all mouse clicks, unless you click on something that actually works. Links, flash videos, etc. How can I adjust this so no matter what a user clicks on, before the video loads, new page loads, etc. It sends the simple GET request I built? (function($) { $.fn.saveClicks = function() { $(this).bind('mousedown.clickmap', function(evt) { var clickDocument = (document.documentElement != undefined && document.documentElement.clientHeight != 0) ? document.documentElement : document.body; var width = clickHeatDocument.clientWidth != undefined ? clickDocument.clientWidth : window.innerWidth; var height = clickHeatDocument.clientHeight != undefined ? clickDocument.clientHeight : window.innerHeight; var scrollx = window.pageXOffset == undefined ? clickDocument.scrollLeft : window.pageXOffset; var scrolly = window.pageYOffset == undefined ? clickDocument.scrollTop : window.pageYOffset; var x = evt.clientX + scrollx; var y = evt.clientY + scrolly; $.get('/click-save.php', { "x":evt.pageX, "y":evt.pageY, "click":"true", "w":width, "h":height, "l":escape(document.location.pathname), "d":escape(document.domain) }); }); }; })(jQuery); $(function() { $(document).saveClicks(); });

    Read the article

  • jQuery scroll div with scrollTop

    - by papermate
    I'm trying to scroll a div up or down when hovering over the respective arrows. I also want to be able to jump down the div when the buttons are clicked (think clicking the windows scroll arrows rather than dragging the scroll bar). The scrolling works but the jumping doesn't. scrollTop() keeps retuning 0. Here's the code: function startScrollContent() { if ($('.haccordion-opened').prev('.header').find('div').attr('title') != 'dontscroll' && $('.haccordion-opened span.arrow').length == 0) { $('.haccordion-opened').append('<span class="arrow down" style="position: absolute; bottom: 5px; left: 260px; font-size: 9pt;">&#9660;</span><span class="arrow up" style="position: absolute; bottom: 5px; left: 280px; font-size: 9pt;">&#9650;</span>'); $('.content span.arrow').hover(function() { direction = ($(this).hasClass('up')) ? '-=' : '+='; $('.content .padding').animate({scrollTop: direction + $('.content .padding').css('height')}, 5000); }, function() { $('.content .padding').stop(); }); $('.content span.arrow').click(function() { $('.content .padding').stop(); direction = ($(this).hasClass('up')) ? '-' : '+'; alert($('.content .padding').scrollTop()); //$('.content .padding').scrollTop($('.content .padding').scrollTop + direction + 100); }); } return; } How can I get the jump part working?

    Read the article

  • Haskell search an element on a List

    - by user1887556
    I want a function that changes (1 to 0) on a list, when number of 1's isn't even. I have done these functions: 1) Sees if the lines in a list are even or not: parityLine :: [[Int]] -> [Bool] parityLine [] =[] parityLine (x:xs) |sum(x) `mod` 2 == 0 = True:(parityLine(xs)) |otherwise = False:(parityLine(xs)) 2) Sum the corresponding elements on a list of lists: sumPositions :: [[Int]] -> [Int] sumPositions [] = [] sumPositions (x:xs) = foldl (zipWith (+)) (repeat 0) (x:xs) 3) Sees if the columns in a list are even or not: parityColumn :: [Int] -> [Bool] parityColumn [] = [] parityColumn (x:xs) |head(x:xs) `mod` 2 == 0 = True:parityColumn(xs) |otherwise = False:parityColumn(xs) 4) Does the operation or with two boolean lists: bol :: [Bool] -> [Bool] -> [[Bool]] bol [] _ = [] bol (x:xs) (y:ys)= (map (||x) (y:ys)):(bol xs (y:ys)) 5) Correct List: correct :: [[Int]] -> [[Bool]] correct [] = [] correct (x:xs)=(bol(parityLine (x:xs))(parityColumn(sumPositions(x:xs)))) So what I want is to alter the function correct to [[Int]]-[[Int]] that does this: My Int list(x:xs) With my correct function applied [[0,0,1,1], [[True,True,False,True], [1,0,1,1], [True,True,True,True], [0,1,0,1], [True,True,True,True] [1,1,1,1]] [True,True,True,True]] Now I can see that in the first line third column, False, so I have to correct that number 1 to have a number of 1's even. Result I want that function correct does: [[0,0,0,1], [1,0,1,1], [0,1,0,1], [1,1,1,1]] Thanks.

    Read the article

  • when is a v-table created in C++?

    - by saminny
    When exactly does the compiler create a virtual function table? 1) when the class contains at least one virtual function. OR 2) when the immediate base class contains at least one virtual function. OR 3) when any parent class at any level of the hierarchy contains at least one virtual function. A related question to this: Is it possible to give up dynamic dispatch in a C++ hierarchy? e.g. consider the following example. #include <iostream> using namespace std; class A { public: virtual void f(); }; class B: public A { public: void f(); }; class C: public B { public: void f(); }; Which classes will contain a V-Table? Since B does not declare f() as virtual, does class C get dynamic polymorphism?

    Read the article

  • Margin for select option in IE and chrome is not working

    - by Sardor
    I am setting a css class to some select options in JS. This class includes margin style. It is working in the FF but not in IE and chrome. window.onload = function() { replace('edit-field-region-tid'); replace('edit-tid'); } function replace(id) { var i = 0; var s = document.getElementById(id); for (i; i < s.options.length; i++) { if (find(s.options[i].text, id, i)) { s.options[i].setAttribute("class", "sub_options"); } } } function find(str, id, option_id) { var i; var s = document.getElementById(id); for (i = 0; i < str.length; i++) { if (str.charAt(i) == '-') { s.options[option_id].text = str.cutAt(0, ""); return true; } } return false; } String.prototype.cutAt = function(index, char) { return this.substr(index+1, this.length); } And CSS: .sub_options{ margin-left:20px; text-indent:-2px; } Any ideas thanks!

    Read the article

  • Sorting CouchDB Views By Value

    - by Lee Theobald
    Hi all, I'm testing out CouchDB to see how it could handle logging some search results. What I'd like to do is produce a view where I can produce the top queries from the results. At the moment I have something like this: Example document portion { "query": "+dangerous +dogs", "hits": "123" } Map function (Not exactly what I need/want but it's good enough for testing) function(doc) { if (doc.query) { var split = doc.query.split(" "); for (var i in split) { emit(split[i], 1); } } } Reduce Function function (key, values, rereduce) { return sum(values); } Now this will get me results in a format where a query term is the key and the count for that term on the right, which is great. But I'd like it ordered by the value, not the key. From the sounds of it, this is not yet possible with CouchDB. So does anyone have any ideas of how I can get a view where I have an ordered version of the query terms & their related counts? I'm very new to CouchDB and I just can't think of how I'd write the functions needed.

    Read the article

  • What rules govern the copying of variables in Javascript closures?

    - by int3
    I'd just like to check my understanding of variable copying in Javascript. From what I gather, variables are passed/assigned by reference unless you explicitly tell them to create a copy with the new operator. But I'm a little uncertain when it comes to using closures. Say I have the following code: var myArray = [1, 5, 10, 15, 20]; var fnlist = []; for (var i in myArray) { var data = myArray[i]; fnlist.push(function() { var x = data; console.log(x); }); } fnlist[2](); // returns 20 I gather that this is because fnlist[2] only looks up the value of data at the point where it is invoked. So I tried an alternative tack: var myArray = [1, 5, 10, 15, 20]; var fnlist = []; for (var i in myArray) { var data = myArray[i]; fnlist.push(function() { var x = data; return function() { console.log(x); } }()); } fnlist[2](); // returns 10 So now it returns the 'correct' value. Am I right to say that it works because a function resolves all variable references to their 'constant' values when it is invoked? Or is there a better way to explain it? Any explanations / links to explanations regarding this referencing / copying business would be appreciated as well. Thanks!

    Read the article

< Previous Page | 451 452 453 454 455 456 457 458 459 460 461 462  | Next Page >