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• What is the best method to convert to an Integer in JavaScript?

  - by Mathew Byrne

  There are several different methods for converting floating point numbers to Integers in JavaScript. My question is what method gives the best performance, is most compatible, or is considered the best practice? Here are a few methods that I know of: var a = 2.5; window.parseInt(a); // 2 Math.floor(a); // 2 a | 0; // 2 I'm sure there are others out there. Suggestions?

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• How to disable crazy Javascript/HTML formatting in Visual Studio 2008?

  - by usr

  The formatting of HTML and Javascript is just crazy. It actively works against you. Does anybody know how to turn this off completely? (I Do not speak about th HTML designer, I speak about what happens when you press ctrl-k,d in HTML view).

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• Is there a Javascript equivalent of .NET HttpWebRequest.ClientCertificates?

  - by Coder 42

  I have this code working in C#: var request = (HttpWebRequest)WebRequest.Create("https://x.com/service"); request.Method = "GET"; // Add X509 certificate var bytes = Convert.FromBase64String(certBase64); var certificate = new X509Certificate2(bytes, password); request.ClientCertificates.Add(certificate, "password")); Is there any way to reproduce this request in Javascript? Third-party libraries would be fine for my purposes.

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• How to implement something like PHP's http_build_query and the reverse in javascript?

  - by wamp

  <?php $data = array('foo'=>'bar', 'baz'=>'boom', 'cow'=>'milk', 'php'=>'hypertext processor'); echo http_build_query($data); /* Output: foo=bar&baz=boom&cow=milk&php=hypertext+processor */ How to do similar thing in javascript,say, get the query string from the array ,and convert the array to query string?

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• In Javascript is there a function that returns the number of times that a given string occurs?

  - by William Calleja

  In Javascript is there a function that returns the number of times that a given string occurs? I need to return a numeric value that is equal to the number of times that a given string occurs within a particular string for instance: var myString = "This is a test text" If I had to search for 'te' in the above string it would return 2.

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• google app engine: go to login page by javascript?

  - by user342284

  Do anyone know how do use javascript to redirect user login using Google Accounts? I know there is "users.create_login_url(self.request.path)" but how do that integrated to "`window.location" Or there is alternative??

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• Good(free) javascript library that draws 3d charts using json....

  - by Pandiya Chendur

  Any one who had experience in drawing 3d charts with a javascript library with json data.. If so suggest me that library.....

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• JavaScript Prompt - Is it ok to use? Or does it act strange in some browsers?

  - by nobosh

  I'm interested in using a JavaScript Prompt to have the user enter data. Any concerns on using JS prompt? Will any browsers freak out?

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• Is there a way using jQuery or Javascript to force a page to open in Firefox?

  - by sadmicrowave

  Is there a way using jQuery or Javascript to force a page to open in Firefox? For example, if the user has their default browser set to internet explorer, but they have firefox on their computer - open a new firefox window with the intended page. If so, I would need to check to see if they have firefox on their machine; otherwise, redirect to the mozilla firefox download site... any suggestions?

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• What are useful JavaScript methods that extends built-in objects?

  - by Canavar

  What are your most useful, most practical methods that extends built-in JavaScript objects like String, Array, Date, Boolean, Math, etc.? String format trim padding replaceAll & replaceAll Array indexOf Date toMidnight Note : Please post one extended method per answer.

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• How do I set up a listener in jQuery/javascript to monitor a if a value in the textbox has changed?

  - by manraj82

  How do I set up a listener in jQuery/javascript to monitor a if a value in the textbox has changed? The value is fed into the textbox by a scanner,so each time an item is scanned the value in the textbox changes.I need to display some information based on the value in the textbox.

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• How to construct an Atom object in Javascript and POST it to an URL?

  - by user319525

  I'm trying to create a table using google spreadsheet API as described here http://code.google.com/apis/spreadsheets/data/3.0/developers_guide_protocol.html#TableRecordFeeds But I'm not sure how to construct the Atom object in Javascript and POST it to an URL.

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• JavaScript: what's the difference between a function name & function reference?

  - by Teddyk

  I'm reading the Google Maps API and it states that the: "callback: The function to call once the script has loaded. If using the Auto-loading feature, this must specify a function name, not a function reference. What's the difference been a JavaScript function name vs a function reference? http://code.google.com/apis/ajax/documentation/#GoogleLoad

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• Why write <script type="text/javascript"> when the mime type is set by the server?

  - by Christopher Altman

  My understanding is that mime types are set by the web server. Why do we add the type="text/javascript or type="text/css" attribute? Isn't this a useless and ignored attribute?

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• how to achieve multi threading using javascript with IE6?

  - by Dilip

  how to achieve multi threading using javascript with IE6? Is there a third party library to do this?

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• Javascript Expression "document.body.getElementsByTagName();" Vs "document.getElementsByTagName();"

  - by webzide

  Dear experts, I am quite new to javascript and I often see coders use those lines interchangeabaly. document.body.getElementsByTagName(); and document.getElementsByTagName(); What is the difference, benefits? Does this have anything to do with FF and IE?

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• How do you change an HTML radiobutton selection from Javascript?

  - by Giffyguy

  I need to select an HTML radiobutton (deselecting any previously selected radiobutton) on my form, from within Javascript. How is this accomplished?

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• How to Loop through JavaScript object literal with objects as members?

  - by ed.talmadge

  How can I loop through all members in a JavaScript object including values that are objects. For example, how could I loop through this (accessing the "your_name" and "your_message" for each)? var validation_messages = { "key_1": { "your_name": "jimmy", "your_msg": "hello world" }, "key_2": { "your_name": "billy", "your_msg": "foo equals bar" } }

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• How to get computer name or IP from javascript?

  - by Hemanshu Bhojak

  I want to get the name of the computer or its IP address through javascript. How can this be obtained?

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• How to read a txt from an Open File dialog and load the content in a textarea with javascript (jquer

  - by Sebastian

  I want to make an "Open File" button to import txt files contents into a textarea. How can I read the file contents without uploading it to the server? I want to use javascript (with jquery lib) and I want to do it without refreshing the page.

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• Why does the month argument range from 0 to 11 in JavaScript's Date constructor?

  - by Agnel Kurian

  When initializing a new Date object in JavaScript using the below call, I found out that the month argument counts starting from zero. new Date(2010, 3, 1); // that's the 1st April 2010! Why does the month argument start from 0? On the other hand, the day of the month argument (last one) is a number from 1 to 31. Are there good reasons for this?

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• Why do I never see the prototype property in JavaScript code I edit?

  - by yaya3

  Why do I never see the prototype property in JavaScript code I edit, from books and documentation I've read, it seems to be a cornerstone of the language.

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• Compiling a list of audio + video players (flash / javascript / otehr) that I can embed into a websi

  - by FiveTools

  I'm compiling a list of audio + video players (flash / javascript / other) that I can embed into a website. flowplayer: http://flowplayer.org/ jw player: http://www.longtailvideo.com/players/ premium beat: http://www.premiumbeat.com/flash_resources/free_flash_music_player/ xspf web player: http://musicplayer.sourceforge.net/ yahoo media player: http://mediaplayer.yahoo.com/ any popular ones I'm missing? (anyone know if I can skin / customize any of them to operate similar to the Windows vista volume control?)

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• How can I create a Zerofilled value using JavaScript?

  - by Wilco

  What is the recommended way to zerofill a value in JavaScript? I imagine I could build a custom function to pad zeros on to a typecasted value, but I'm wondering if there is a more direct way to do this? Note: By "zerofilled" I mean it in the database sense of the word (where a 6-digit zerofilled representation of the number 5 would be "000005").

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• What is a good Javascript graphing library to use with GWT application?

  - by Andrew Hubbs

  Do you have any suggestions of graphing libraries to use with a GWT project? I need to graph a set of data points and several lines. Also some shading of the area under a line. I am open to suggestions of straight Javascript libraries or Java that I can just use with GWT.

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