Make it clear that iteration order is stable. Reference: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-map-iterable (“Set map’s [[MapData]] internal slot to a new empty List.”)
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MDN is changing to focus just on documenting web technologies. All the same great content is still here; we’re just changing some visual elements and navigation, to help you more quickly find the web technology docs you’re looking for.
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