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Boolean return value of DOMTokenList replace()

Category

DOM

Type

New or changed feature

Status

Enabled by default (Chrome 67)

Intent stage

None

Summary

The DOM specification was updated so that DOMTokenList replace() returns a boolean value. This is useful for code which takes different paths depending on whether a replacement occurred, avoiding the need for an extra condition using contains().

Standards & signals

• Specification: https://dom.spec.whatwg.org/#dom-domtokenlist-replace
• Firefox: In development
• Safari: In development
• Web developers: No signals
• Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=820988

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