48 lines
1.1 KiB
JavaScript
48 lines
1.1 KiB
JavaScript
import _curry2 from "./internal/_curry2.js";
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import _has from "./internal/_has.js";
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import isNil from "./isNil.js";
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/**
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* Returns whether or not a path exists in an object. Only the object's
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* own properties are checked.
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*
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* @func
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* @memberOf R
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* @since v0.26.0
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* @category Object
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* @typedefn Idx = String | Int
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* @sig [Idx] -> {a} -> Boolean
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* @param {Array} path The path to use.
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* @param {Object} obj The object to check the path in.
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* @return {Boolean} Whether the path exists.
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* @see R.has
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* @example
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*
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* R.hasPath(['a', 'b'], {a: {b: 2}}); // => true
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* R.hasPath(['a', 'b'], {a: {b: undefined}}); // => true
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* R.hasPath(['a', 'b'], {a: {c: 2}}); // => false
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* R.hasPath(['a', 'b'], {}); // => false
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*/
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var hasPath =
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/*#__PURE__*/
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_curry2(function hasPath(_path, obj) {
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if (_path.length === 0 || isNil(obj)) {
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return false;
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}
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var val = obj;
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var idx = 0;
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while (idx < _path.length) {
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if (!isNil(val) && _has(_path[idx], val)) {
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val = val[_path[idx]];
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idx += 1;
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} else {
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return false;
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}
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}
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return true;
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});
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export default hasPath; |