Mathias Bynens • 3/4/2015

Valid JavaScript variable names in ES2015

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This technical article details the changes to JavaScript identifier grammar in ES2015 (ES6), comparing it to ES5. It covers new Unicode symbol rules, escape sequence syntax, the handling of reserved words like 'await' in modules, and the removal of certain non-standard behaviors, providing specific code examples for valid and invalid identifiers.

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Valid JavaScript variable names in ES2015

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