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on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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[d24f17c] | 1 | import _curry2 from "./internal/_curry2.js";
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| 2 | import _isInteger from "./internal/_isInteger.js";
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| 3 | import nth from "./nth.js";
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| 4 | /**
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| 5 | * Returns a function that when supplied an object returns the indicated
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| 6 | * property of that object, if it exists.
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| 7 | *
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| 8 | * @func
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| 9 | * @memberOf R
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| 10 | * @since v0.1.0
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| 11 | * @category Object
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| 12 | * @typedefn Idx = String | Int | Symbol
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| 13 | * @sig Idx -> {s: a} -> a | Undefined
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| 14 | * @param {String|Number} p The property name or array index
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| 15 | * @param {Object} obj The object to query
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| 16 | * @return {*} The value at `obj.p`.
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| 17 | * @see R.path, R.props, R.pluck, R.project, R.nth
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| 18 | * @example
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| 19 | *
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| 20 | * R.prop('x', {x: 100}); //=> 100
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| 21 | * R.prop('x', {}); //=> undefined
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| 22 | * R.prop(0, [100]); //=> 100
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| 23 | * R.compose(R.inc, R.prop('x'))({ x: 3 }) //=> 4
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| 24 | */
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| 25 |
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| 26 | var prop =
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| 27 | /*#__PURE__*/
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| 28 | _curry2(function prop(p, obj) {
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| 29 | if (obj == null) {
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| 30 | return;
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| 31 | }
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| 32 |
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| 33 | return _isInteger(p) ? nth(p, obj) : obj[p];
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| 34 | });
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| 35 |
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| 36 | export default prop; |
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