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Home
Javascript
Advanced
Coredom
JavaScript DOM Attribute count
JavaScript DOM Attribute count
Count number of attributes that exists for the button.
Other examples in Coredom (JavaScript advanced)
JavaScript DOM Attribute count
JavaScript DOM setAttribute
Result from the Online TryIt-Editor
<!doctype html> <html> <body> <p id="demo"> Click the button to see how many attributes the button element has: </p> <button onclick="myFunction()"> Try it </button> <script type="text/javascript"> function myFunction() { var btn=document.getElementsByTagName("BUTTON")[0]; var x=document.getElementById("demo"); x.innerHTML=btn.attributes.length; } </script> <p> The result should be 1 (the button element's onclick attribute). </p> <p> <strong> Note: </strong> In Internet Explorer 8 and earlier, the attributes property will return a collection of all <em> possible </em> attributes for the element, and will, in this example, display a much higher number than 1. </p> </body> </html>
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