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38 lines
989 B
TypeScript
38 lines
989 B
TypeScript
// Loaded from https://deno.land/x/ramda@v0.27.2/source/prop.js
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import _curry2 from './internal/_curry2.js';
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import _isInteger from './internal/_isInteger.js';
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import nth from './nth.js';
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/**
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* Returns a function that when supplied an object returns the indicated
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* property of that object, if it exists.
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*
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* @func
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* @memberOf R
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* @since v0.1.0
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* @category Object
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* @typedefn Idx = String | Int | Symbol
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* @sig Idx -> {s: a} -> a | Undefined
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* @param {String|Number} p The property name or array index
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* @param {Object} obj The object to query
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* @return {*} The value at `obj.p`.
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* @see R.path, R.props, R.pluck, R.project, R.nth
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* @example
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*
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* R.prop('x', {x: 100}); //=> 100
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* R.prop('x', {}); //=> undefined
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* R.prop(0, [100]); //=> 100
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* R.compose(R.inc, R.prop('x'))({ x: 3 }) //=> 4
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*/
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var prop = _curry2(function prop(p, obj) {
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if (obj == null) {
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return;
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}
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return _isInteger(p) ? nth(p, obj) : obj[p];
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});
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export default prop;
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