"use strict"; var forEach = require("@sinonjs/commons").prototypes.set.forEach; /** * Returns `true` when `s1` is a subset of `s2`, `false` otherwise * * @private * @param {Array|Set} s1 The target value * @param {Array|Set} s2 The containing value * @param {Function} compare A comparison function, should return `true` when * values are considered equal * @returns {boolean} Returns `true` when `s1` is a subset of `s2`, `false`` otherwise */ function isSubset(s1, s2, compare) { var allContained = true; forEach(s1, function (v1) { var includes = false; forEach(s2, function (v2) { if (compare(v2, v1)) { includes = true; } }); allContained = allContained && includes; }); return allContained; } module.exports = isSubset;