elem.innerText performance issue

[patmmccann]

Type of issue

Enhancement

Description

https://gist.github.com/paulirish/5d52fb081b3570c81e3a suggests element.innerText causes layout recalculations

Luckily only a few times is it used

Prebid.js/modules/idImportLibrary.js

Line 158 in 40dd3b6

email = targetElement.innerText;

Prebid.js/modules/adhashBidAdapter.js

Line 123 in 40dd3b6

const content = window.top.document.body.innerText.toLowerCase();

Prebid.js/modules/freewheel-sspBidAdapter.js

Line 79 in 40dd3b6

price: priceNode.textContent || priceNode.innerText

Prebid.js/modules/freewheel-sspBidAdapter.js

Line 113 in 40dd3b6

domain.push(domainNode.textContent || domainNode.innerText);

I wonder if we can somehow eliminate its use and ban calling it from the library via the linter?

[patmmccann]

It seems the first two can be converted to using textContent, the second two can eliminate the fallback, and we can add the linting rule.