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1 | var _curry3 =
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2 | /*#__PURE__*/
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3 | require("./internal/_curry3.js");
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4 | /**
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5 | * Makes a descending comparator function out of a function that returns a value
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6 | * that can be compared with `<` and `>`.
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7 | *
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8 | * @func
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9 | * @memberOf R
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10 | * @since v0.23.0
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11 | * @category Function
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12 | * @sig Ord b => (a -> b) -> a -> a -> Number
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13 | * @param {Function} fn A function of arity one that returns a value that can be compared
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14 | * @param {*} a The first item to be compared.
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15 | * @param {*} b The second item to be compared.
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16 | * @return {Number} `-1` if fn(a) > fn(b), `1` if fn(b) > fn(a), otherwise `0`
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17 | * @see R.ascend
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18 | * @example
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19 | *
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20 | * const byAge = R.descend(R.prop('age'));
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21 | * const people = [
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22 | * { name: 'Emma', age: 70 },
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23 | * { name: 'Peter', age: 78 },
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24 | * { name: 'Mikhail', age: 62 },
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25 | * ];
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26 | * const peopleByOldestFirst = R.sort(byAge, people);
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27 | * //=> [{ name: 'Peter', age: 78 }, { name: 'Emma', age: 70 }, { name: 'Mikhail', age: 62 }]
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28 | */
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29 |
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30 |
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31 | var descend =
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32 | /*#__PURE__*/
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33 | _curry3(function descend(fn, a, b) {
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34 | var aa = fn(a);
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35 | var bb = fn(b);
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36 | return aa > bb ? -1 : aa < bb ? 1 : 0;
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37 | });
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38 |
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39 | module.exports = descend; |
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