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x/ramda/path.js

:ram: Practical functional Javascript
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import _curry2 from './internal/_curry2';

/** * Retrieve the value at a given path. * * @func * @memberOf R * @since v0.2.0 * @category Object * @typedefn Idx = String | Int * @sig [Idx] -> {a} -> a | Undefined * @param {Array} path The path to use. * @param {Object} obj The object to retrieve the nested property from. * @return {*} The data at `path`. * @see R.prop * @example * * R.path(['a', 'b'], {a: {b: 2}}); //=> 2 * R.path(['a', 'b'], {c: {b: 2}}); //=> undefined */var path = _curry2(function path(paths, obj) { var val = obj; var idx = 0; while (idx < paths.length) { if (val == null) { return; } val = val[paths[idx]]; idx += 1; } return val;});export default path;