Unhide code blocks in live sample for Promise #3718
Merged
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This PR is related to #3694 and #3512, and it removes the only place in the JS docs where we use
class="hidden"
to hide part of a live sample.I could have chosen to move
hidden
to the code blocks themselves, but in this case (and I expect in many other cases) think it's better not to hide them, so someone can see the whole example.I also changed a couple of
var
s tolet
andconst
, and renamed theid
on the<button>
in the example, because<button id="btn">
was upsetting.