All files isIterable.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
35x
 
 
 
/**
 * Type detection beyond `typeof`
 * 
 * Copyright (C) 2022  Dieter Raber
 * https://opensource.org/licenses/MIT
 */
import getType from "./getType.js";
 
/**
 * Check if a value is a iterable
 * @param {*} value The value to check
 * @returns {Boolean}
 * @example
 * const v1 = [1, 2, 3];
 * isIterable(v1); // true 
 * const v2 = new Map();
 * isIterable(v2); // true 
 * const v3 = {};
 * isIterable(v3); // false
 */
const isIterable = (value) => Symbol.iterator in Object(value) && getType(value[Symbol.iterator]) === 'Function';
 
export default isIterable;