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30-seconds-of-code/snippets/is-generator-function.md
Angelos Chalaris 61200d90c4 Kebab file names
2023-04-27 21:58:35 +03:00

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Value is generator function type,function chalarangelo interior-4 2020-08-07T15:40:38+03:00 2020-10-20T11:21:07+03:00

Checks if the given argument is a generator function.

  • Use Object.prototype.toString() and Function.prototype.call() and check if the result is '[object GeneratorFunction]'.
const isGeneratorFunction = val =>
  Object.prototype.toString.call(val) === '[object GeneratorFunction]';
isGeneratorFunction(function() {}); // false
isGeneratorFunction(function*() {}); // true