ecometer

Do not modify the DOM when traversing

(Development)
#43

Modifying the DOM (Document Object Model) as you traverse it risks making the loop highly resource-expensive, especially in terms of CPU usage. An infinite loop, which consumes a huge amount of resources, might be generated if we add elements at the same time as we traverse it. It is thus highly recommended to NOT perform such edits.

Avoid:

<script>
$('a.extlink').each(function(el) {
    $(el).attr('rel', 'external nofollow');
});
</script>
This best practice should only be applied if it is coherent with your project's specifications.
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