Can someone shed some light on the mysterious @@iterator? It keeps popping up in tutorials but no one seems to provide a clear explanation of what it actually is. Is it a symbol literal or something else entirely?
Can someone shed some light on the mysterious @@iterator? It keeps popping up in tutorials but no one seems to provide a clear explanation of what it actually is. Is it a symbol literal or something else entirely?
Symbol.iterator is a widely recognized symbol in JavaScript.
The convention of using @@ naming can be found in the JavaScript language specification at http://www.ecma-international.org/ecma-262/6.0/#sec-well-known-symbols
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