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javascript Programming Glossary: willHow do JavaScript closures work? http://stackoverflow.com/questions/111102/how-do-javascript-closures-work x var tmp 3 function bar y alert x y tmp bar 10 foo 2 This will always alert 16 because bar can access the x which was defined.. bar foo 2 bar is now a closure. bar 10 The above function will also alert 16 because bar can still refer to x and tmp even.. inside bar 's closure it is also being incremented. It will be incremented each time you call bar . The simplest example..
Access / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json use a for loop for var i 0 l data.items.length i l i `i` will take on the values `0` `1` `2` ... i.e. in each iteration we..
Does it matter which equals operator (== vs ===) I use in JavaScript comparisons? http://stackoverflow.com/questions/359494/does-it-matter-which-equals-operator-vs-i-use-in-javascript-comparisons Javascript Tutorial Comparison Operators The operator will compare for equality after doing any necessary type conversions.. after doing any necessary type conversions . The operator will not do the conversion so if two values are not the same type.. do the conversion so if two values are not the same type will simply return false . It's this case where will be faster and..
http://stackoverflow.com/questions/5874652/prop-vs-attr I do have to switch to using prop all the old attr calls will break if i switch to 1.6 UPDATE See this fiddle http jsfiddle.net.. Not so good for the bazillions of sites using jQuery that will break as a result of this change though. I'll summarize the.. used to do. Replacing calls to attr with prop in your code will generally work. Properties are generally simpler to deal with..
Will HTML5 allow web apps to make peer-to-peer HTTP connections? http://stackoverflow.com/questions/1032006/will-html5-allow-web-apps-to-make-peer-to-peer-http-connections HTML5 allow web apps to make peer to peer HTTP connections ..
Detect IE version in Javascript http://stackoverflow.com/questions/10964966/detect-ie-version-in-javascript 12 etc. is fine too if badBrowser navigate to error page Will this code do the trick To head off a few comments that will..
How to determine using JavaScript if HTML element has overflowing content http://stackoverflow.com/questions/143815/how-to-determine-using-javascript-if-html-element-has-overflowing-content overflowing its bounds either vertically or horizontally. Will temporarily modify the overflow style to detect this if necessary...
Cross-browser onload event and the Back button http://stackoverflow.com/questions/158319/cross-browser-onload-event-and-the-back-button You may want to compare to this one without onunload body Will not reload on back button script type text javascript alert..
Where to place Javascript in a HTML file? http://stackoverflow.com/questions/196702/where-to-place-javascript-in-a-html-file body here p All the page content ... p or here body html Will there be any functional difference between each of the options..
Do HTML5 custom data attributes ?śwork??in IE 6? http://stackoverflow.com/questions/2412947/do-html5-custom-data-attributes-work-in-ie-6 got HTML like this div id geoff data geoff geoff de geoff Will the following JavaScript work var geoff document.getElementById..
'setInterval' vs 'setTimeout' [duplicate] http://stackoverflow.com/questions/2696692/setinterval-vs-settimeout them. Example var intervalID setInterval alert 1000 Will alert every second. clearInterval intervalID Will clear the.. 1000 Will alert every second. clearInterval intervalID Will clear the timer. setTimeout alert 1000 Will alert once after..
How do I get the name of an object's type in JavaScript? http://stackoverflow.com/questions/332422/how-do-i-get-the-name-of-an-objects-type-in-javascript those uses since it isn't relevant to this discussion. Will not work cross frame and cross window Using .constructor for.. Javascript interprets the first dot as a decimal point Will not work cross frame and cross window instanceof also will not..
http://stackoverflow.com/questions/4744105/parse-and-execute-js-by-c-sharp return 1 2 x Console.WriteLine parsed.CallMethod MyFunc 3 Will display 6 3 Function call with named items and optional arguments.. COM components. public class MyItem public int Num get set Will display 10. Edit I have added the possibility to use a CLSID..
http://stackoverflow.com/questions/500431/javascript-variable-scope 'a' is set in the constructor above. Seven.prototype.b 8 Will get reached even though 'b' is NOT set in the constructor. These..
How to remove the space between inline-block elements? http://stackoverflow.com/questions/5078239/how-to-remove-the-space-between-inline-block-elements to carefully consider where whitespace will come from. Will appending another element with jQuery add whitespace No not..
Does JavaScript Guarantee Object Property Order? http://stackoverflow.com/questions/5525795/does-javascript-guarantee-object-property-order an object like this var obj obj.prop1 Foo obj.prop2 Bar Will the resulting object always look like this prop1 Foo prop2 Bar..
http://stackoverflow.com/questions/6348494/addeventlistener-vs-onclick currently need to attach more than one event to an element Will you in the future Odds are you will. attachEvent and addEventListener..
detect back button click in browser http://stackoverflow.com/questions/6359327/detect-back-button-click-in-browser null null Handle the back or forward buttons here Will NOT handle refresh use onbeforeunload for this. else var ignoreHashChange..
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