javascript how to get picture width
How to get picture width ?!
clientWidth and clientHeight are DOM properties that show the current in-browser size of the inner dimensions of a DOM element (excluding margin and border。
var img = document.getElementById('imageid');
//or however you get a handle to the IMG
var width = img.clientWidth;
var height = img.clientHeight;
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How to get upload picture width ?!
<input type="file" name="photo" id="photoInput" onchange="checkPhoto(this)"/>
var _URL = window.URL || window.webkitURL; $("#
photoInput
").change(function (e) { var file, img; if ((file = this.files[0])) { img = new Image();
img.src = _URL.createObjectURL(file);
img.onload = function () { alert(this.width + " " + this.height); }; } });
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