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  • Modulation of adding new Strings -> Method calls.

    - by guesswork
    If I have a program that does the following: if(input=='abc'){do x} if(input=='def'){do y} In the future, I may want to add another piece of code like so: if(input=='ghy'){do x} As you can see, I am adding a new 'if' statement for a different conditional BUT using the SAME function X. The code in future has potential to have lots of different IF statements (or switches) all of which are comparing a string vs a string and then performing a function. Considering the future expansion, I was wondering if there is a possible 'neater', 'modular' way of achieving the same results. It's a shame I can't combine the String with a Method call in a hashtable (String, method) in Java. That way I could just store any new procedures inside a hashtable and grab the relevant method for that String. Any ideas? Thank you

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  • $("body").scrollTop() doesn't update in safari

    - by Kristoffer Nolgren
    I'm working on a website: http://beta.projektopia.se/ the body has several background-images that are updated on scroll like this: $(document).ready(function(){ $(document).scroll(function(){ var scrollfactor=$("body").scrollTop()*0.2; var centerscrollpos =scrollfactor+613; var docheight = $(document).height(); var windowheight = $(window).height(); var bottompos = (docheight-980)-((docheight-windowheight)*0.2)+scrollfactor; var scrollpos = 'center '+scrollfactor+'px,center '+bottompos+'px, center '+ centerscrollpos+'px,center 0px'; $("body").css("background-position", scrollpos); }); }); Lots of calculations, but the important thing is that a scrollpos is created that should change the position of the background when you scroll, to create a parallax-effect. It works great in chrome, but in firefox, the variable scrollfactor, that is suppose to get the current scroll-position, doesn't update. ps, some people have this issue due to lack of correct doctype. I believe i have declared it correctly like this: <!DOCTYPE html>

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  • jQuery click event not working when mouse moves from one div to another with button held down

    - by Acorn
    I've made a page that uses jQuery to allow you to place <div>s on the page based on your mouse coordinates when you click. The page And here's the javascript: $('document').ready(function() { $("#canvas").click(function(e){ var x = e.pageX - this.offsetLeft; var y = e.pageY - this.offsetTop; $(document.createElement('div')).css({'left':x + 'px', 'top':y + 'px'}).addClass('tile').appendTo('#canvas'); }); }); I've found that if you mousedown in the div#canvas and mouseup with your pointer over a placed <div> (or vice versa) then a new <div> doesn't get placed. Why is this?

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  • Lua: Random: Percentage

    - by jargl
    I'm creating a game and currently have to deal with some math.randomness. As I'm not that strong in Lua, how do you think Can you make an algorithm that uses math.random with a given percentage? I mean a function like this: function randomChance( chance ) -- Magic happens here -- Return either 0 or 1 based on the results of math.random end randomChance( 50 ) -- Like a 50-50 chance of "winning", should result in something like math.random( 1, 2 ) == 1 (?) randomChance(20) -- 20% chance to result in a 1 randomChance(0) -- Result always is 0 However I have no clue how to go on, and I completely suck at algorithms I hope you understood my bad explanation of what I'm trying to accomplish

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  • Passing variable string to create arrays (Android)

    - by dweebsonduty
    Hello all, I am a newb to Android and Java and want to write a funtion that will display a list based on a varable that I pass to the function. The function is below and the code below creates an array out of a string called type, but what I want to do is pass it a variable string and have it build a list based on that string. So if I wanted the type list I would say list_it("type") But if I try something like getResources().getStringArray(R.array.thelist); it doesn't work. Can someone point me in the right direction? public void list_it(String thelist){ String[] types = getResources().getStringArray(R.array.type); ArrayAdapter<String> mAdapter = new ArrayAdapter<String>(this, R.layout.list_item1, types); setListAdapter(mAdapter); ListView lv = getListView(); lv.setTextFilterEnabled(true); }

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  • JavaScript - question regarding data structure

    - by orokusaki
    I'm trying to calculate somebody's bowel health based on a points system. I can edit the data structure, or logic in any way. I'm just trying to write a function and data structure to handle this ability. Pseudo calculator function: // Bowel health calculator var points = 0; If age is from 30 and 34: points += 1 If age is from 35 and 40: points += 2 If daily BMs is from 1 and 3: points -= 1 If daily BMs is from 4 and 6: points -= 2 return points; Pseudo data structure: var points_map = { age: { '30-34': 1, '35-40': 2 }, dbm: { '1-3': -1, '4-6': -2 } }; I have a full spreadsheet of data like this, and I am trying to write a DRY version of code and a DRY version of this data (ie, probably not a string for the '30-34', etc) in order to handle this sort of thing without a humongous number of switch statements.

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  • get_called_class hack not working with eval-code.

    - by Ekampp
    Hi there. I am using a ge_called_class hack for allowing late static binding in php version 5.2 (found here). I have the following in my code: # db_record.php $ac = "ForumThread"; $objects = $ac::find("all"); This will not work in php 5.2 for some reason, so I have done this: # db_record.php $ac = "ForumThread"; eval("\$objects = {$ac}::find('all');"); This on the other hand will not work with the get_called_class function. I get an error that the file function can't read the evaled section of code. So how do I solve this problem? Best regards.

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  • I have a ConnectException that isn't being caught for some reason

    - by aakbari1024
    I'm working on an Android application that uses sockets. I have a function called initializeStreams() which opens the socket and attempts a connection. This function throws a ConnectException if the connection could not be established. But for some reason, in the code that calls initializeStreams(), which has a catch block for ConnectException, the log prints out its own stack trace for the exception instead of going to the catch block. The catch block is never reached at all, even though the exact exception is being thrown. Here's the code: The try block: try { initializeStreams(); /* drivesList = new ArrayList<String>(); drivesList = enumerateDrives();*/ } catch (ConnectException e) { //Log.i(TAG, "caught connect exception"); /*loadingProgress.dismiss(); retryConnection();*/ } initializeStreams(): public void initializeStreams() throws ConnectException { try { Log.i(TAG, "Attempting to connect"); requestSocket = new Socket(SERVER_ADDR, PORT); /* other code */ } catch (IOException e) { e.printStackTrace(); } I can't figure this out, so any help would be much appreciated. }

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  • Overrided ToString doesn't show in debug

    - by marco.ragogna
    I have a collection similar to: Public Class MyCollection Inherits ObservableCollection(Of MyCollection) Private _Name As String Public Property Name() As String Get Return _Name End Get Set(ByVal value As String) _Name = value End Set End Property Public Overrides Function ToString() As String Return "Name: " & _Name End Function End Class I have overrided ToString method in order to help in debug, but it doesn't show up. In the code that follow if, during debug, I move the mouse over coll it shows me Count = 0 Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded Dim coll As New MyCollection coll.Name = "Test" End Sub Do you know what could be the problem?

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  • static, define, and const in C

    - by yCalleecharan
    Hi, I've read that static variables are used inside function when one doesn't want the variable value to change/initialize each time the function is called. But what about defining a variable static in the main program before "main" e.g. #include <stdio.h> static double m = 30000; int main(void) { value = m * 2 + 3; } Here the variable m has a constant value that won't get modified later in the main program. In the same line of thought what difference does it make to have these instead of using the static definition: const double m = 30000; or #define m 30000 //m or M and then making sure here to use double operations in the main code so as to convert m to the right data type. Thanks a lot...

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  • How do I bind the Overlay Tool for new Ajax elements in Jquery?

    - by Hooman Ahmadi
    Hi, I'm using: echo $javascript->link('tools.overlay-1.0.4', false); which is initialized with: $(".overlay_popup").overlay({ expose: '#000000', close: '.close_overlay', finish: { top: 'center', left: 'center', absolute: false } }); I call the overlay popup box like this: echo $html->link( "add part", array('controller'=>'garage_parts', 'action'=>'addfrompartlist', $gcar['GarageCar']['id'], $gcar['GarageCar']['car_id']), array('class'=>'js-ajax overlay_popup', 'id'=>'add_part_overlay', 'rel'=>'.overlay_container') ); This all works fine and dandy, however I have an ajax function that dynamically adds the "add part" hyperlink button shown above and I have no idea how to bind this new button to the overlay. Normally, I would use something like this: $(".overlay_popup").bind("click", function(){... but this didn't work for the overlay. Any ideas on how I can successfully do this?

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  • saving file name from html form input

    - by user343934
    I am working on python and biopython right now. I have a file upload form and whatever file is uploaded suppose(abc.fasta) then i want to pass same name in execute (abc.fasta) function parameter and display function parameter (abc.aln). Workflow goes like this. ----If submit is not true then display only header and form part --- if submit is true then call execute() and get file name from form input --- Then display the save file result in the same page. File name is same as input. My raw code is here -- http://pastebin.com/FPUgZSSe Any suggestions, changes and algorithm is appreciated Thanks

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  • Jquery mobile spinner not loading in external links

    - by Jorge Zuverza
    I'm developing an application in which I have internal and external links. i noticed that Jquery mobile does not load the spinner when an external link is clicked: Example <a href = "/products">Spinner is shown </a> <a href = "othersite.com" rel = "external">Spinner is NOT shown </a> I have tried : $('a[href][rel=external]').click(function(){ //doesnt work $.mobile.showPageLoadingMsg(); } and: $('a[href][rel=external]').click(function(){ // shows the spinner but it gets stuck forever $.mobile.showPageLoadingMsg(); $('#loadingDiv').div("refresh"); } can someone help me show the spinner when the rel = external links are clicked? thanks!

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  • PHP: How to overwrite values in one array with values from another

    - by Svish
    I have an array with default settings, and one array with user-specified settings. I want to merge these two arrays so that the default settings gets overwritten with the user-specified ones. I have tried to use array_merge, which does the overwriting like I want, but it also adds new settings if the user has specified settings that doesn't exist in the default ones. Is there a better function I can use for this than array_merge? Or is there a function I can use to filter the user-specified array so that it only contains keys that also exist in the default settings array? (PHP version 5.3.0)

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  • moving between states I get an error in Flex.

    - by Adam
    ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller. so i have a function that runs in state1 and has a while(myCanvas.rawChildren.numChildren > 0){ myCanvas.rawChildren.removeChildAt(0); } //this code is definitely the problem.... I can move to state2, but when I move back to state1 i get the error. why? the function that has the while loop only runs when something is searched in state1, so why is it running when coming back from state2?

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  • get content of a div from a variable using jQuery

    - by devdarsh
    i am building a php form with ajax and i am submitting the form variables to the same page where the form resides. my validating code looks like if($valid){ echo "<div id='retmsg'>Your message has been submitted successfully</div>"; } else { echo "<div id='retmsg'>An error occured!</div>"; } My ajax code function form_submit() { $('#response').html('Loading...').fadeIn(); $.ajax({ type: "POST", url: "<?php $_SERVER['PHP_SELF']; ?>", data: "title=" + $('#title').val() + "&content=" + $('#contents').val(), success: function(html){ var message = $("#retmsg").html(html); alert(message); } }); } i need to alert the contents of div id "retmsg". But the alert shows me like "[Object Object]". Please help me...

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  • Can't set element ID in JavaScript, it's always undefined

    - by Dylaan Alith
    Hi, I want to have a function that generates ID's on the fly for a given jquery object, if it doesn't have one already. These ID's should then be used in future requests. I came up with the code below, but it doesn't work. The ID's are never set. The commented out alert statement below always return undefined. I always pass code like $(this) or $(options.el) as a parameter to substitute 'el'. Initially, the elements do not have explicitly ID set in HTML. Any help would be appreciated, here's the code: getElementId: function(el) { if(undefined == el.attr('id')) { el.attr('id',"anim-"+Math.random().toString().substr(2)); } // alert(el.attr('id')); return el.attr('id'); },

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  • Use deployJava.js to check for/automatically install latest JRE version for web applet

    - by Pryo
    I'd like to use the deployJava.js tool to have Java automatically detect the currently installed JRE and install an updated version if necessary. My initial impression when reading about deployJava.js was that it would do this out of the box when you simply set a version number as a function parameter for the "runApplet" function. But this has never seemed to work. Is it even possible to do this, and if so, how? Here is my current code for launching my applet: <script type="text/javascript" src="https://www.java.com/js/deployJava.js"></script> <script type="text/javascript"> var attributes = {id:"applet", name:"TheApplet", code:"TheApplet"}; var parameters = {jnlp_href: "http://localhost/TheApplet.jnlp"}; deployJava.runApplet(attributes, parameters, "1.6.0_31"); </script> Thanks

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  • passing parameters to a thread

    - by assassin
    I want to pass a function that takes a parameter to the ThreadStart Constructor in C#. But, it seems that this is not possible, as I get a syntax error it I try to do something like this Thread t1 = new Thread(new Thread Start(func1(obj1)); where obj1 is an object of type List<string> (say). If I want a thread to execute this function that takes in an object as a parameter, and I plan to create 2 such threads simultaneously with different parameter values what is the best method to achieve this?

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  • jQuery form serialize - empty string

    - by user137348
    My html: <script type="text/javascript"> $(function() { $("#bt1").click(function() { var f = $("#form1"); var formData = f.serialize(); alert(formData); }); }); </script> <div id="div1"> <form id="form1" action="/Home/Test1" method="post" name="down"> <div id="div2"> <input id="input1" type="text" value="2" /> </div> </form> </div> <input type="submit" id="bt1" /> When I fire up the click event, formData is empty. I'm using jQuery 1.4.2.

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  • getimagezise Error pasing filename

    - by Talha Bin Shakir
    Hi, I am using getimagesize() to get teh size of my image. I have image in my sub-directory when i am passing file name with sub-directory i ma facing an error: There is no such file or directory here is my Code: <?PHP function resize($img,$max_w){ $max_h=$max_w; list($img_w,$img_h) = getimagesize($img); $f = min($max_w/$img_w, $max_h/$img_h, 1); $w = round($f * $img_w); $h = round($f * $img_h); return array($w,$h); } $filename="user_img/"."1256115556.jpg"; $resize=resize($filename,667); $w=$resize[0]; $h=$resize[1]; ?> instead of this when i passing $filename="1256115556.jpg"; file from my main directory the function is running perfectly. So please help me, How to pass file with sub-directory.

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  • Jquery Exclude a Selector?

    - by Wes
    I've got a form that I clear on focus. I've selected the whole form and it works great except that the submit button goes blank when I click it. how can I exclude my input of input#submit from the following code? $(".wpcf7-form input, .wpcf7-form textarea").focus(function() { if( this.value == this.defaultValue ) { this.value = ""; $(this).addClass('filled'); } }).blur(function() { if( !this.value.length ) { this.value = this.defaultValue; $(this).removeClass('filled'); } });

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  • IE is not loading all images

    - by newbie
    I have jQuery code that loads images with jQuery load method. It works perfectly in all other browsers, except in IE. I have about 10 images, but IE only loads few of those images and then stops loading. What could be causing this? $(".image-container").each(function() { ... some code here ... var img = $("img", this); $(img).load(function () { ... some code here ... }); });

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  • Haskell - mapping the odd placed values and the even placed values differently

    - by Abstract
    Hey guys, is there an easy way. To take a list of numbers, say 123456. Then multiply the odd placed by three and the even placed by 1. i.e. (1 * 3) + (2 * 1) + (3 * 3) + (4*1) + (5*3) + (6*1) i was thinking the map function somewhere along the lines. But i don't know how to map *3 to just the odd placed values. Oh and if you could give me the version not in prelude that would be great like the actual function or functions, as if its being imported from an external haskell file Thanks for the help

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  • Error message when trying to insert method into touchesBegan

    - by Rob
    I am trying to create a new method within my TapDetectingImageView file and it's giving me a warning that it cannot find the method even though I have it declared in the .h file. The specific three warnings all point to the @end line in the .m file when I build it and they say: "Incomplete implementation of class 'TapDetectingImageView' ; 'Method definition for '-functionA:' not found" ; "Method definition for '-functionB:' not found" What am I missing? Am I not allowed to do this in a protocol file like TapDetectingImageView? In my .h file is: @interface TapDetectingImageView : UIImageView <AVAudioPlayerDelegate> { id <TapDetectingImageViewDelegate> delegate; } @property (nonatomic, assign) id <TapDetectingImageViewDelegate> delegate; -(void) functionA:(NSString*)aVariable; -(void) functionB:(NSString*)aVariable; @end In my .m file is: -(void)functionA:(NSString*)aVariable { // do stuff in this function with aVariable } -(void)functionB:(NSString*)aVariable { // do stuff in this function with aVariable }

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