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mrchief/array-intersects.js

Created June 2, 2018 23:31
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Simple array intersection check in ES6
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array-intersects.js
/* Returns true if a intersects with b
* a is said to intersect with b if at least 1 element of a is present in b.
* e.g.
* intersects(['1', '2'], ['1', '3', '4']) // true
* intersects(['1', '2'], ['3', '4']) // false
*/
export default (a, b) => a.some(k => b.indexOf(k) > -1)
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