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Editorial Team
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Asked: 2026-06-01T17:56:12+00:00

Is there a general rule, when one should use document.write to change the website

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Is there a general rule, when one should use document.write to change the website content and when to use .innerHTML?

So far my rules were:

1) Use document.write when adding new content

2) Use .innerHTML when changing existing content

But I got confused, since someone told me that on the one hand .innerHTML is a strange Microsoft standard, but on the other hand I read that document.write is not allowed in XHTML.

Which structures should I use to manipulate my source code with JavaScript?

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1 Answer

  1. Editorial Team

    innerHTML can be used to change the contents of the DOM by string munging. So if you wanted to add a paragraph with some text at the end of a selected element you could so something like

    document.getElementById( 'some-id' ).innerHTML += '<p>here is some text</p>'

    Though I’d suggest using as much DOM manipulation specific API as possible (e.g. document.createElement, document.createDocumentFragment, <element>.appendChild, etc.). But that’s just my preference.

    The only time I’ve seen applicable use of document.write is in the HTML5 Boilerplate (look at how it checks if jQuery was loaded properly). Other than that, I would stay away from it.

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