jiapengyu
37 lines
956 B
JavaScript
37 lines
956 B
JavaScript
import _curry2 from './internal/_curry2';
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/**
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* Returns true if its arguments are identical, false otherwise. Values are
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* identical if they reference the same memory. `NaN` is identical to `NaN`;
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* `0` and `-0` are not identical.
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*
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* @func
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* @memberOf R
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* @since v0.15.0
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* @category Relation
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* @sig a -> a -> Boolean
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* @param {*} a
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* @param {*} b
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* @return {Boolean}
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* @example
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*
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* var o = {};
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* R.identical(o, o); //=> true
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* R.identical(1, 1); //=> true
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* R.identical(1, '1'); //=> false
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* R.identical([], []); //=> false
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* R.identical(0, -0); //=> false
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* R.identical(NaN, NaN); //=> true
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*/
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var identical = /*#__PURE__*/_curry2(function identical(a, b) {
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// SameValue algorithm
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if (a === b) {
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// Steps 1-5, 7-10
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// Steps 6.b-6.e: +0 != -0
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return a !== 0 || 1 / a === 1 / b;
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} else {
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// Step 6.a: NaN == NaN
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return a !== a && b !== b;
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}
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});
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export default identical; |