Not to be a wet blanket, but this proposal predates padLeftGate by a lot:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;tc39&#x2F;proposal-string-pad-start-end&#x2F;commit&#x2F;5e370dc4731aa12c88def15a0b2acc78952c9677" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;tc39&#x2F;proposal-string-pad-start-end&#x2F;commit...</a><p><a href="http:&#x2F;&#x2F;wiki.ecmascript.org&#x2F;doku.php?do=revisions&amp;id=strawman%3Astring_padding" rel="nofollow">http:&#x2F;&#x2F;wiki.ecmascript.org&#x2F;doku.php?do=revisions&amp;id=strawman...</a>