How to check if a value is a generator function in JavaScript

In this Article we will go through how to check if a value is a generator function only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const isGeneratorFunction = v => Object.prototype.toString.call(v) === '[object GeneratorFunction]';

#Example

isGeneratorFunction(function() {});     // false
isGeneratorFunction(function*() {});    // true
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