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Symbol.toStringTag (ES6)

Category

JavaScript

Type

New or changed feature

Status

Enabled by default (Chrome 49)

Intent stage

None

Summary

Using Symbol.toStringTag, user-defined types can return customized output when passed to Object.prototype.toString (either directly or as a result of string coercion) by storing a descriptive string in a Symbol.toStringTag-keyed property.

Standards & signals

• Specification: http://www.ecma-international.org/ecma-262/6.0/#sec-symbol.tostringtag
• Firefox: In development
• Safari: In development
• Web developers: No signals
• Tracking bug: https://bugs.chromium.org/p/v8/issues/detail?id=3502

View on chromestatus.com