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Last change
on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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[d24f17c] | 1 | import _curry2 from "./internal/_curry2.js";
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| 2 | import _isInteger from "./internal/_isInteger.js";
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| 3 | import nth from "./nth.js";
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| 4 | /**
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| 5 | * Retrieves the values at given paths of an object.
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| 6 | *
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| 7 | * @func
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| 8 | * @memberOf R
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| 9 | * @since v0.27.1
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| 10 | * @category Object
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| 11 | * @typedefn Idx = [String | Int | Symbol]
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| 12 | * @sig [Idx] -> {a} -> [a | Undefined]
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| 13 | * @param {Array} pathsArray The array of paths to be fetched.
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| 14 | * @param {Object} obj The object to retrieve the nested properties from.
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| 15 | * @return {Array} A list consisting of values at paths specified by "pathsArray".
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| 16 | * @see R.path
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| 17 | * @example
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| 18 | *
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| 19 | * R.paths([['a', 'b'], ['p', 0, 'q']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, 3]
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| 20 | * R.paths([['a', 'b'], ['p', 'r']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, undefined]
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| 21 | */
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| 22 |
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| 23 | var paths =
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| 24 | /*#__PURE__*/
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| 25 | _curry2(function paths(pathsArray, obj) {
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| 26 | return pathsArray.map(function (paths) {
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| 27 | var val = obj;
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| 28 | var idx = 0;
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| 29 | var p;
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| 30 |
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| 31 | while (idx < paths.length) {
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| 32 | if (val == null) {
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| 33 | return;
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| 34 | }
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| 35 |
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| 36 | p = paths[idx];
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| 37 | val = _isInteger(p) ? nth(p, val) : val[p];
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| 38 | idx += 1;
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| 39 | }
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| 40 |
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| 41 | return val;
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| 42 | });
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| 43 | });
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| 44 |
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| 45 | export default paths; |
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