Last change
on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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File size:
805 bytes
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[6a3a178] | 1 | /*!
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| 2 | * arr-diff <https://github.com/jonschlinkert/arr-diff>
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| 3 | *
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| 4 | * Copyright (c) 2014-2017, Jon Schlinkert.
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| 5 | * Released under the MIT License.
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| 6 | */
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| 7 |
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| 8 | 'use strict';
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| 9 |
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| 10 | module.exports = function diff(arr/*, arrays*/) {
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| 11 | var len = arguments.length;
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| 12 | var idx = 0;
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| 13 | while (++idx < len) {
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| 14 | arr = diffArray(arr, arguments[idx]);
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| 15 | }
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| 16 | return arr;
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| 17 | };
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| 18 |
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| 19 | function diffArray(one, two) {
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| 20 | if (!Array.isArray(two)) {
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| 21 | return one.slice();
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| 22 | }
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| 23 |
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| 24 | var tlen = two.length
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| 25 | var olen = one.length;
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| 26 | var idx = -1;
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| 27 | var arr = [];
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| 28 |
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| 29 | while (++idx < olen) {
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| 30 | var ele = one[idx];
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| 31 |
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| 32 | var hasEle = false;
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| 33 | for (var i = 0; i < tlen; i++) {
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| 34 | var val = two[i];
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| 35 |
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| 36 | if (ele === val) {
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| 37 | hasEle = true;
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| 38 | break;
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| 39 | }
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| 40 | }
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| 41 |
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| 42 | if (hasEle === false) {
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| 43 | arr.push(ele);
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| 44 | }
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| 45 | }
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| 46 | return arr;
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| 47 | }
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