1 | import _curry3 from "./internal/_curry3.js";
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2 | import curryN from "./curryN.js";
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3 | /**
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4 | * Creates a function that will process either the `onTrue` or the `onFalse`
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5 | * function depending upon the result of the `condition` predicate.
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6 | *
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7 | * Note that `ifElse` takes its arity from the longest of the three functions passed to it.
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8 | *
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9 | * @func
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10 | * @memberOf R
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11 | * @since v0.8.0
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12 | * @category Logic
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13 | * @sig (*... -> Boolean) -> (*... -> *) -> (*... -> *) -> (*... -> *)
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14 | * @param {Function} condition A predicate function
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15 | * @param {Function} onTrue A function to invoke when the `condition` evaluates to a truthy value.
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16 | * @param {Function} onFalse A function to invoke when the `condition` evaluates to a falsy value.
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17 | * @return {Function} A new function that will process either the `onTrue` or the `onFalse`
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18 | * function depending upon the result of the `condition` predicate.
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19 | * @see R.unless, R.when, R.cond
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20 | * @example
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21 | *
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22 | * const incCount = R.ifElse(
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23 | * R.has('count'),
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24 | * R.over(R.lensProp('count'), R.inc),
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25 | * R.assoc('count', 1)
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26 | * );
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27 | * incCount({ count: 1 }); //=> { count: 2 }
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28 | * incCount({}); //=> { count: 1 }
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29 | */
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30 |
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31 | var ifElse =
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32 | /*#__PURE__*/
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33 | _curry3(function ifElse(condition, onTrue, onFalse) {
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34 | return curryN(Math.max(condition.length, onTrue.length, onFalse.length), function _ifElse() {
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35 | return condition.apply(this, arguments) ? onTrue.apply(this, arguments) : onFalse.apply(this, arguments);
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36 | });
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37 | });
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38 |
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39 | export default ifElse; |
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