mirror of
https://github.com/swc-project/swc.git
synced 2024-12-26 23:27:56 +03:00
17 lines
490 B
TypeScript
17 lines
490 B
TypeScript
|
// Loaded from https://deno.land/x/ramda@v0.27.2/source/internal/_objectIs.js
|
||
|
|
|
||
|
|
|
||
|
|
// Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
|
||
|
|
function _objectIs(a, b) {
|
||
|
|
// SameValue algorithm
|
||
|
|
if (a === b) { // Steps 1-5, 7-10
|
||
|
|
// Steps 6.b-6.e: +0 != -0
|
||
|
|
return a !== 0 || 1 / a === 1 / b;
|
||
|
|
} else {
|
||
|
|
// Step 6.a: NaN == NaN
|
||
|
|
return a !== a && b !== b;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export default typeof Object.is === 'function' ? Object.is : _objectIs;
|