#1408 - String Matching in an Array

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Problem Description

Given an array of string words. Return all strings in words which is substring of another word in any order.

String words[i] is substring of words[j], if can be obtained removing some characters to left and/or right side of words[j].

Solution

/**
 * @param {string[]} words
 * @return {string[]}
 */
var stringMatching = function(words) {
  return words.filter(s => words.some(word => word !== s && word.includes(s)));
};