gajus / gajus/is-arrow-function
Incorrect
Open
- Dominant language
- JavaScript
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Description
```js
let isRegularFunction,
functionToString;
functionToString = Function.prototype.toString;
isRegularFunction = (fn) => {
return functionToString.call(fn).indexOf('function') === 0;
};
let isArrowFunction = (fn) => {
return !isRegularFunction(fn);
};
```
```js
let test = () => {
return function () {
console.log('test');
}
};
isArrowFunction(test); // true
```
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