I have a HTML <title> element which I want to dynamically change depending on other elements. I tried using doc开发者_StackOverflow社区ument.getElementsByTagName('title').innerHTML = dynamicContent but this did not seem to work. I have seen it done before, but I can't seem to figure out exactly how to do this.
Do you mean the <title> element in <head> of the page?
If yes, then changing document.title should do the trick.
getElementsByTagName() returns a NodeList, so you need to pick one element:
document.getElementsByTagName('title')[0].innerHTML = dynamicContent
There's also a shortcut to the title:
document.title = dynamicContent
You can manipulate
a) document.title = 'blah';
b) .textContent or .innerText depending on the browser
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