vanilla JavaScript set style on body

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vanilla JavaScript set style on body

posted Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

vanilla JavaScript set style on body

Why does this not work?

Using vanilla JavaScript to set the style on body tag?

<html>
   <body style="display:none;">
       test
   </body>
   <script>
       document.getElementsByTagName("body").style.display = "block";
   </script>
</html>

question from:https://stackoverflow.com/questions/15519527/vanilla-javascript-set-style-on-body

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1 Reply

深蓝 · Answer 1 · 2021-10-06T03:48:42+0000

Because getElementsByTagName() returns a NodeList, not a single element. Treat it as array:

document.getElementsByTagName("body")[0].style.display = "block";

Or even simpler in case of body:

document.body.style.display = "block";

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vanilla JavaScript set style on body

vanilla JavaScript set style on body

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