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43 lines
1.2 KiB
TypeScript
43 lines
1.2 KiB
TypeScript
// Loaded from https://deno.land/x/ramda@v0.27.2/source/paths.js
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import _curry2 from './internal/_curry2.js';
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import _isInteger from './internal/_isInteger.js';
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import nth from './nth.js';
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/**
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* Retrieves the values at given paths of an object.
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*
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* @func
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* @memberOf R
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* @since v0.27.1
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* @category Object
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* @typedefn Idx = [String | Int | Symbol]
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* @sig [Idx] -> {a} -> [a | Undefined]
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* @param {Array} pathsArray The array of paths to be fetched.
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* @param {Object} obj The object to retrieve the nested properties from.
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* @return {Array} A list consisting of values at paths specified by "pathsArray".
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* @see R.path
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* @example
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*
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* R.paths([['a', 'b'], ['p', 0, 'q']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, 3]
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* R.paths([['a', 'b'], ['p', 'r']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, undefined]
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*/
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var paths = _curry2(function paths(pathsArray, obj) {
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return pathsArray.map(function(paths) {
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var val = obj;
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var idx = 0;
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var p;
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while (idx < paths.length) {
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if (val == null) {
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return;
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}
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p = paths[idx];
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val = _isInteger(p) ? nth(p, val) : val[p];
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idx += 1;
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}
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return val;
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});
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});
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export default paths;
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