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How to get current image size (width & height) in javascript

Topic: JavaScript / jQueryPrev|Next

Answer: Use the JavaScript clientWidth property

You can simply use the JavaScript clientWidth property to get the current width and height of an image. This property will round the value to an integer.

Let's check out the following example to understand how it basically works:

  • <!DOCTYPE html>
  • <html lang="en">
  • <head>
  • <meta charset="utf-8">
  • <title>JavaScript Find Current Image Width and Height</title>
  • <script>
  •     function imgSize(){
  •         var myImg = document.querySelector("#sky");
  •         var currWidth = myImg.clientWidth;
  •         var currHeight = myImg.clientHeight;
  •         alert("Current width=" + currWidth + ", " + "Original height=" + currHeight);
  •     }
  • </script>
  • </head>
  • <body>
  •     <img src="sky.jpg" id="sky" width="250" alt="Cloudy Sky">
  •     <p><button type="button" onclick="imgSize();">Get Current Image Size</button></p>
  • </body>
  • </html>

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