UNPKG

789 BJavaScriptView Raw
1import _curry2 from "./internal/_curry2.js";
2import path from "./path.js";
3/**
4 * Returns a function that when supplied an object returns the indicated
5 * property of that object, if it exists.
6 *
7 * @func
8 * @memberOf R
9 * @since v0.1.0
10 * @category Object
11 * @typedefn Idx = String | Int
12 * @sig Idx -> {s: a} -> a | Undefined
13 * @param {String|Number} p The property name or array index
14 * @param {Object} obj The object to query
15 * @return {*} The value at `obj.p`.
16 * @see R.path, R.nth
17 * @example
18 *
19 * R.prop('x', {x: 100}); //=> 100
20 * R.prop('x', {}); //=> undefined
21 * R.prop(0, [100]); //=> 100
22 * R.compose(R.inc, R.prop('x'))({ x: 3 }) //=> 4
23 */
24
25var prop =
26/*#__PURE__*/
27_curry2(function prop(p, obj) {
28 return path([p], obj);
29});
30
31export default prop;
\No newline at end of file