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javascript - document.getElementById().value return undefined in chrome

<div id="hour" style="display: none">2</div>

JavaScript code:

<script type="text/javascript">
    var _h = document.getElementById('hour').value
    alert(_h);
</script>

Chrome returns undefined. What is the problem?

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The .value property applies to form elements (inputs), not divs. The simplest way to get the contents of your div element is with .innerHTML:

document.getElementById('hour').innerHTML;

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