source: node_modules/ramda/src/hasIn.js

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Last change on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago

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1var _curry2 =
2/*#__PURE__*/
3require("./internal/_curry2.js");
4
5var isNil =
6/*#__PURE__*/
7require("./isNil.js");
8/**
9 * Returns whether or not an object or its prototype chain has a property with
10 * the specified name
11 *
12 * @func
13 * @memberOf R
14 * @since v0.7.0
15 * @category Object
16 * @sig s -> {s: x} -> Boolean
17 * @param {String} prop The name of the property to check for.
18 * @param {Object} obj The object to query.
19 * @return {Boolean} Whether the property exists.
20 * @example
21 *
22 * function Rectangle(width, height) {
23 * this.width = width;
24 * this.height = height;
25 * }
26 * Rectangle.prototype.area = function() {
27 * return this.width * this.height;
28 * };
29 *
30 * const square = new Rectangle(2, 2);
31 * R.hasIn('width', square); //=> true
32 * R.hasIn('area', square); //=> true
33 */
34
35
36var hasIn =
37/*#__PURE__*/
38_curry2(function hasIn(prop, obj) {
39 if (isNil(obj)) {
40 return false;
41 }
42
43 return prop in obj;
44});
45
46module.exports = hasIn;
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