Question

I know jQuery is easy to get the value but how can i use Javascript only to get the value?

This is what I did

<input type="text" class="num" /> <a href="#" onclick="alert(document.getElementsByClassName('num').value);"> click </a>

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thanks for help

Answer 1

document.getElementsByClassName returns an array of elements. You’re looking for the first element in that array:

document.getElementsByClassName('num')[0].value;

Demo: http://jsfiddle.net/2vRCU/1/