[d24f17c] | 1 | var _objectIs =
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| 2 | /*#__PURE__*/
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| 3 | require("./internal/_objectIs.js");
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| 4 | /**
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| 5 | * Returns true if its arguments are identical, false otherwise. Values are
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| 6 | * identical if they reference the same memory. `NaN` is identical to `NaN`;
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| 7 | * `0` and `-0` are not identical.
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| 8 | *
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| 9 | * Note this is merely a curried version of ES6 `Object.is`.
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| 10 | *
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| 11 | * `identical` does not support the `__` placeholder.
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| 12 | *
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| 13 | * @func
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| 14 | * @memberOf R
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| 15 | * @since v0.15.0
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| 16 | * @category Relation
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| 17 | * @sig a -> a -> Boolean
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| 18 | * @param {*} a
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| 19 | * @param {*} b
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| 20 | * @return {Boolean}
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| 21 | * @example
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| 22 | *
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| 23 | * const o = {};
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| 24 | * R.identical(o, o); //=> true
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| 25 | * R.identical(1, 1); //=> true
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| 26 | * R.identical(1, '1'); //=> false
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| 27 | * R.identical([], []); //=> false
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| 28 | * R.identical(0, -0); //=> false
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| 29 | * R.identical(NaN, NaN); //=> true
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| 30 | */
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| 31 |
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| 32 |
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| 33 | var identical = function (a, b) {
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| 34 | switch (arguments.length) {
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| 35 | case 0:
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| 36 | return identical;
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| 37 |
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| 38 | case 1:
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| 39 | return function () {
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| 40 | return function unaryIdentical(_b) {
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| 41 | switch (arguments.length) {
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| 42 | case 0:
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| 43 | return unaryIdentical;
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| 44 |
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| 45 | default:
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| 46 | return _objectIs(a, _b);
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| 47 | }
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| 48 | };
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| 49 | }();
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| 50 |
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| 51 | default:
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| 52 | return _objectIs(a, b);
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| 53 | }
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| 54 | }; // In order to support Cross-origin Window objects as arguments to identical,
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| 55 | // it cannot be implemented as _curry2(_objectIs).
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| 56 | // The reason is that _curry2 checks if a function argument is the placeholder __
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| 57 | // by accessing a paritcular property. However, across URL origins access
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| 58 | // to most properties of Window is forbidden.
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| 59 |
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| 60 |
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| 61 | module.exports = identical; |
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