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jQuery AJAX submit form

... forget your name attributes). --> </form> <script type="text/javascript"> var frm = $('#contactForm1'); frm.submit(function (e) { e.preventDefault(); $.ajax({ type: frm.attr('method'), url: frm.attr('action'), data: frm....
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Check whether an input string contains a number in javascript

... You can do this using javascript. No need for Jquery or Regex function isNumeric(n) { return !isNaN(parseFloat(n)) && isFinite(n); } While implementing var val = $('yourinputelement').val(); if(isNumeric(val)) { alert('number'); } e...
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Detecting an undefined object property

What's the best way of checking if an object property in JavaScript is undefined? 46 Answers ...
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javascript check for not null

...t (fyi Ujwal, !!val should technically work in C or C++ also) see here for javascript 'truthiness' values: janosch.woschitz.org/javascript-equality-comparison – Will Buck Mar 21 '13 at 18:00 ...
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How to create an object property from a variable value in JavaScript? [duplicate]

I want to add a new property to 'myObj', name it 'string1' and give it a value of 'string2', but when I do it it returns 'undefined: ...
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JavaScript REST client Library [closed]

Is there a JavaScript library which allow me to perform all the REST operation like ( GET , POST , PUT and DELETE over HTTP or HTTPS )? ...
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How do I add a simple onClick event handler to a canvas element?

I'm an experienced Java programmer but am looking at some JavaScript/HTML5 stuff for the first time in about a decade. I'm completely stumped on what should be the simplest thing ever. ...
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How to make input type= file Should accept only pdf and xls

...ad the files it will be store in server. I heard so that it is possible by javascript functions to open .pdf and .xls files by clicking the files on browser... – Manikandan Aug 27 '12 at 13:38 ...
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Pass a PHP string to a JavaScript variable (and escape newlines) [duplicate]

What is the easiest way to encode a PHP string for output to a JavaScript variable? 14 Answers ...
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JavaScript: clone a function

What is a fastest way to clone a function in JavaScript (with or without its properties)? 14 Answers ...