1 | import _curry3 from "./internal/_curry3.js";
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2 | import _isArray from "./internal/_isArray.js";
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3 | import _isString from "./internal/_isString.js";
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4 | import clone from "./clone.js";
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5 |
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6 | var swapObject = function (indexA, indexB, o) {
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7 | var copy = clone(o);
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8 | var properties = Object.getOwnPropertyNames(copy);
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9 |
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10 | if (properties.includes(indexA) && properties.includes(indexB)) {
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11 | var tmp = copy[indexA];
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12 | copy[indexA] = copy[indexB];
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13 | copy[indexB] = tmp;
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14 | }
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15 |
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16 | return copy;
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17 | };
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18 |
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19 | var swapList = function (indexA, indexB, list) {
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20 | var length = list.length;
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21 | var result = list.slice();
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22 | var positiveIndexA = indexA < 0 ? length + indexA : indexA;
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23 | var positiveIndexB = indexB < 0 ? length + indexB : indexB;
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24 | var positiveMin = Math.min(positiveIndexA, positiveIndexB);
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25 | var positiveMax = Math.max(positiveIndexA, positiveIndexB);
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26 |
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27 | if (positiveIndexA < 0 || positiveIndexA > length) {
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28 | return result;
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29 | }
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30 |
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31 | if (positiveIndexB < 0 || positiveIndexB > length) {
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32 | return result;
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33 | }
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34 |
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35 | if (positiveIndexA === positiveIndexB) {
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36 | return result;
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37 | }
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38 |
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39 | result = [].concat(result.slice(0, positiveMin)).concat([result[positiveMax]]).concat(result.slice(positiveMin + 1, positiveMax)).concat([result[positiveMin]]).concat(result.slice(positiveMax + 1, length));
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40 | return result;
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41 | };
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42 |
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43 | var swapString = function (indexA, indexB, s) {
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44 | var result = swapList(indexA, indexB, s);
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45 | return _isArray(result) ? result.join('') : result;
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46 | };
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47 | /**
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48 | * Swap an item, at index `indexA` with another item, at index `indexB`, in an object or a list of elements.
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49 | * A new result will be created containing the new elements order.
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50 | *
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51 | * @func
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52 | * @memberOf R
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53 | * @since v0.29.0
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54 | * @category List
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55 | * @sig Number -> Number -> [a] -> [a]
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56 | * @param {Number|string|Object} indexA The first index
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57 | * @param {Number|string|Object} indexB The second index
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58 | * @param {Array|Object} o Either the object or list which will serve to realise the swap
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59 | * @return {Array|Object} The new object or list reordered
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60 | * @example
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61 | *
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62 | * R.swap(0, 2, ['a', 'b', 'c', 'd', 'e', 'f']); //=> ['c', 'b', 'a', 'd', 'e', 'f']
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63 | * R.swap(-1, 0, ['a', 'b', 'c', 'd', 'e', 'f']); //=> ['f', 'b', 'c', 'd', 'e', 'a']
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64 | * R.swap('a', 'b', {a: 1, b: 2}); //=> {a: 2, b: 1}
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65 | * R.swap(0, 2, 'foo'); //=> 'oof'
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66 | */
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67 |
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68 |
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69 | var swap =
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70 | /*#__PURE__*/
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71 | _curry3(function (indexA, indexB, o) {
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72 | if (_isArray(o)) {
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73 | return swapList(indexA, indexB, o);
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74 | } else if (_isString(o)) {
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75 | return swapString(indexA, indexB, o);
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76 | } else {
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77 | return swapObject(indexA, indexB, o);
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78 | }
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79 | });
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80 |
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81 | export default swap; |
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