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  • How do I use jQuery in my Greasemonkey Javascript scripts?

    - by tladuke
    I saw a question here and many blog posts about getting jquery into greasemonkey, but I can't get anything to work. Here's my script: // ==UserScript== // @name Hello jQuery // @namespace http://foo.bar // @description jQuery test script // @include * // ==/UserScript== #{contents of jquery.latest.js pasted in} unsafeWindow.jQuery = jQuery; $(document).ready(function() { alert('Hello world!'); }); I'm hoping to see an alert when I refresh a page, so I can start actually programming something. I've tried a bunch of other things and so far nothing works. The script is enabled in the little monkey menu... edit: the script part now looks like this: foo(); function foo() { $ = unsafeWindow.jQuery; $('tr td.row2:nth-child(4)').css("background-color", "#999"); } it doesn't work. I know the jQuery is good because I can run it from outside of greasemonkey. If instead of a jQuery function is just say alert('hello'); that works fine; I get the alert on page-load.

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  • IE6 forces Two clicks to trigger javascript style=display:inline; event

    - by JiminyCricket
    I have a web form that has 2 radio buttons, depending on which one is clicked it displays a hidden element This works fine in all browsers except for IE6, which, after I click on the radio button, I have to click again (anywhere on the window) and then the element is displayed...has anyone had behavior like this before? I tried to not use jQuery and do straight getElementById() but I get the same behavior... JSCRiPT function showHidden(divid) { $('#'+divid).css( {'display':'inline'} ); } HTML <input type=radio name=borp value=1 onChange='showHidden("brandchecks")' > Brand <input type=radio name=borp value=2 onChange='showHidden("productchecks")' > Product <div id='brandchecks' style='display:none;'> Blah </div> <div id='productchecks' style='display:none;'> Blah </div>

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  • Howto get iframe linking to internal document source using javascript/jQuery?

    - by Tom
    Hi there, I have an iframe with id "appframe", the source is page.html and it's on the same server. I want to get the source of the page using jQuery. alert($("#appframe").contents().find("html").html()); returns <head></head><body></body> even though the document does not contain those tags, it only contains "Default page", so that is exactly what it should return. Any idea how to get the right source script of the whole document using jQuery? Eg. if the document would be "test" then that is exactly what it should return. Please note: I did ask this before a few weeks ago. Unfortunately, I got no solving answer. Because of my lower reputation (~85), I can not request a bounty... This doesn't make much sense to me. Anyway, it forced me to repost this question.

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  • How to replace href using javascript regex in Firefox?

    - by Andrei
    I try to change some links on a webpage using the following code for jQuery on Rails $(function () { $('#lesson a').live('click', function () { $.getScript(this.href.replace(/^(http...[^\/]+)?\/+(.*)$/,'/ajax/\\$2')); return false; }); }) This trick works for Chrome and Safari, but fails (nothing happens on click) for Firefox and Opera. What can be wrong with the code? EDIT1: The webpage contains: <div id="lesson"> <a href="/subj1">Subject 1</a> ... </div> On click, a browser (i.e. Firefox and Opera) should make an ajax-request of /ajax/subj1.

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  • How to understand "if ( obj.length === +obj.length )" Javascript condition statement?

    - by humanityANDpeace
    I have run across a condition statement which I have some difficulties to understand. It looks like (please note the +-sign on the right-hand-side) this: obj.length === +obj.length. Can this condition and its purpose/syntax be explained? Looking at the statement (without knowing it) provokes the impression that it is a dirty hack of some sort, but I am almost certain that underscore.js is rather a well designed library, so there must be a better explanation. Background I found this statement used in some functions of the underscore.js library (underscore.js annotated source). My guesswork is that this condition statement is somehow related to testing for a variable obj to be of Array type? (but I am totally unsure). I have tried to test this using this code. var myArray = [1,2,3]; testResult1 = myArray.length === +myArray.length; console.log( testResult1 ); //prints true var myObject = { foo : "somestring", bar : 123 }; testResult2 = myObject.length === +myObject.length; console.log( testResult2 ); //prints false

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  • What is the difference between an object's scope and it's context in javascript?

    - by DKinzer
    In the vernacular, scope and context have a lot in common. Which is why I get confused when I read references to both, such as in the quote below from an article on closures: Scope refers to where variables and functions are accessible, and in what context it is being executed. (@robertnyman) As far as I can tell, context is just a reference to an object. Can someone please explain what exactly is context, as used, for instance, in the jQuery syntax, $(selector, context). And is an object's scope the same at it's context?

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  • How can I use a value of JSP in Javascript code?

    - by novellino
    Hello, I have a list of elements, each of them appeared in my page through jsp. So I have this: <div id="title"><%= list.get(ind).getTitle() %></div> When I display the elements, as this tag is in for loop, I get everything right. Now I what to place a button for deleting each of this elements. What I have done is: <input type="submit" name="submit" onclick="deleteNewsFunction();" id="submit_btn"/> In the deleteNewsFunction() I just want to print the data. <script> function deleteNewsFunction(){ var item = $('#title').val(); alert(item); } </script> The problem is that the title var gets always the first item even if I am clicking on the button of the second item. I was thinking that maybe a solution is to add the "list.get(ind).getTitle()" as a parameter in the function like deleteNewsFunction(<%=list.get(ind).getTitle()%) but then it did not work at all. Does anyone know how to help me? Thanks a lot!

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  • Is it possible to hide the cursor in a webpage using CSS or Javascript?

    - by yeyeyerman
    I want to hide the cursor when showing a webpage that is meant to display information in a building hall. It doesn't have to be interactive at all. I tried with the cursor property and a transparent cursor image but I didn't make it work. Does anybody know if this can be done? I suppose this can be thought as a security threat for a user that can't know where he is clicking on, so I'm not very optimistic... Thank you!

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  • JavaScript: How can I determine what objects are being collected by the garbage collector?

    - by shino
    I have significant garbage collection pauses. I'd like to pinpoint the objects most responsible for this collection before I try to fix the problem. I've looked at the heap snapshot on Chrome, but (correct me if I am wrong) I cannot seem to find any indicator of what is being collected, only what is taking up the most memory. Is there a way to answer this empirically, or am I limited to educated guesses?

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  • Is there any way to make this JavaScript tab completion script more efficient?

    - by Saladin Akara
    This code is to be integrated into an AJAX Chat system to enable a tab auto-completion of user names: var usernames = new Array(); usernames[0] = "Saladin"; usernames[1] = "Jyllaby"; usernames[2] = "CadaverKindler"; usernames[3] = "qbsuperstar03"; var text = "Text and something else q"; // Start of the script to be imported var searchTerm = text.slice(text.lastIndexOf(" ") + 1); var i; for(i = 0; i < usernames.length && usernames[i].substr(0,searchTerm.length) != searchTerm; i++); // End of the script to be imported document.write(usernames[i]); A couple of notes to be made: The array of usernames and the text variable would both be loaded from the chat itself via AJAX (which, unfortunately, I don't know), and the final output will be handled by AJAX as well. Is there a more efficient way to do this? Also, any tips on how to handle multiple instances of the searchTerm being found?

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  • How do I get the user info of a twitter user using javascript?

    - by user187809
    Using jquery's $.ajax function, I'm not able to parse the results. For example, I used it like this $.ajax({ url : "http://api.twitter.com/1/users/show.json?screen_name=techcrunch", dataType : "json", success : function(data) { // parse the JSON here }, error : function() { alert("Failure!"); }, }); This doesn't work. Do I need a callback function?

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