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Javascript set img src

... can still use the image constructor, and perform the second action in the onload handler of your searchPic. This ensures the image is loaded before you set the src on the real img object. Like so: function LoadImages() { searchPic = new Image(); searchPic.onload=function () { docu...
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Parsing JSON from XmlHttpRequest.responseJSON

...LHttpRequest(); req.responseType = 'json'; req.open('GET', url, true); req.onload = function() { var jsonResponse = req.response; // do something with jsonResponse }; req.send(null); Compatibility: responseType = 'json' is not supported by IE11. The classic way The standard XMLHttpRequest...
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JS - get image width and height from the base64 code

... var i = new Image(); i.onload = function(){ alert( i.width+", "+i.height ); }; i.src = imageData; share | improve this answer | ...
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Preview an image before it is uploaded

...p; input.files[0]) { var reader = new FileReader(); reader.onload = function(e) { $('#blah').attr('src', e.target.result); } reader.readAsDataURL(input.files[0]); // convert to base64 string } } $("#imgInp").change(function() { readURL(this); }); &l...
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Focus Input Box On Load

... might not be supported in all browsers, so we can use javascript. window.onload = function() { var input = document.getElementById("myinputbox").focus(); } 2) How to place cursor at the end of the input text? Here's a non-jQuery solution with some borrowed code from another SO answer. fun...
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css3 transition animation on load?

... Very little Javascript is necessary: window.onload = function() { document.body.className += " loaded"; } Now the CSS: .fadein { opacity: 0; -moz-transition: opacity 1.5s; -webkit-transition: opacity 1.5s; -o-transition: opacity 1.5s; transit...
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Cannot set property 'innerHTML' of null

... If you use window.onload = function name(){} it doesn't matter if the div is before or after. – Colyn1337 Aug 15 '13 at 14:05 ...
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how to set radio option checked onload with jQuery

How to set radio option checked onload with jQuery? 16 Answers 16 ...
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load scripts asynchronously

....createElement('script'); s.type = 'text/javascript'; s.src = src; s.onload = s.onreadystatechange = function() { //console.log( this.readyState ); //uncomment this line to see which ready states are called. if ( !r && (!this.readyState || this.readyState == 'complete') ) {...
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execute function after complete page load

...vascript code is essentially the same amount of (if not less) code: window.onload = function() { // run code }; share | improve this answer | follow | ...