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Is it possible to animate scrollTop with jQuery?

... { scrollTop: "300px" }, { complete : function(){ alert('this alert will popup twice'); } } ); Here's how you can avoid the double callback. var completeCalled = false; $("html, body").animate( { scrollTop: "300px" }, { complete : function(){ ...
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How to select last two characters of a string

... slice() reference : developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… – Offirmo Oct 30 '13 at 9:20 add a comment  |  ...
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How do I record audio on iPhone with AVAudioRecorder?

... %@ %d %@", [err domain], [err code], [[err userInfo] description]); UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Warning" message: [err localizedDescription] delegate: nil cancelButtonTitle:@"OK"...
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Detecting an undefined object property

...ty is the special value undefined, is: if(o.myProperty === undefined) { alert("myProperty value is the special value `undefined`"); } To check if an object does not actually have such a property, and will therefore return undefined by default when you try and access it: if(!o.hasOwnProperty('m...
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How to check if two arrays are equal with JavaScript? [duplicate]

... provided example: var a=[1,2,3]; var b=[3,2,1]; var c=new Array(1,2,3); alert(_.isEqual(a, b) + "|" + _.isEqual(b, c)); By the way: Underscore has lots of other methods that jQuery is missing as well, so it's a great complement to jQuery. EDIT: As has been pointed out in the comments, the abov...
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Default argument values in JavaScript functions [duplicate]

...peof(a)==='undefined') a = 10; if (typeof(b)==='undefined') b = 20; alert("A: "+a+"\nB: "+b); } //testing func(); func(80); func(100,200); share | improve this answer | ...
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Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?

...re two methods of building a link that has the sole purpose of running JavaScript code. Which is better, in terms of functionality, page load speed, validation purposes, etc.? ...
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How to suppress Update Links warning?

I'm trying to write a script that opens many Excel files. I keep getting the prompt: 7 Answers ...
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JavaScript click handler not working as expected inside a for loop [duplicate]

... (function (i) { $("#div" + i).click( function () { alert(i); } ); })(i); } UPDATE Updated DEMO Or you can use 'let' instead var to declare i. let gives you fresh binding each time. It can only be used in ECMAScript 6 strict mode. 'use strict'; for(let i=1; ...
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How can I capture the right-click event in JavaScript? [duplicate]

... oncontextmenu event. Here's an example: <div oncontextmenu="javascript:alert('success!');return false;"> Lorem Ipsum </div> And using event listeners (credit to rampion from a comment in 2011): el.addEventListener('contextmenu', function(ev) { ev.preventDefault(); alert('su...