Would this be the best way to do this?

I'm trying to learn JavaScript by writing a Google Chrome extension for Reddit so I wrote something to display both link and comment karma in the little tab up top.

a = document.getElementById("header-bottom-right");
a.firstChild.firstChild.nextElementSibling.innerText =开发者_开发技巧 "100000"

Obviously it is not the full thing (just finding the correct nodes to edit), but is their a better way to grab the karma text?

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Reddit uses jQuery library (an ancient version, but still). So instead of using plain js you could use: $('#header-bottom-right child_tag').html('10000') (you can also use custom html there)

With plain js could be something like this:

var hbr = document.getElementById('header-bottom-right');
var links = hbr.getElementsByTagName('a'); // replace this with what tag you want to change
links[0].innerHTML = 'your cool text';

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May not be the best way, but you may be able to use innerHTML instead.

document.getElementById('header-bottom-right').firstChild.firstChild.nextElementSibling.innerHTML