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30secondsofcode
2018-01-15 17:12:46 +00:00
parent bdaa93e1d7
commit d02c622ac5
3 changed files with 50 additions and 8 deletions
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11
snippets/equals.md
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@ -9,12 +9,9 @@ If none of the above conditions are met, use `Object.keys()` to check if both va
```js
const equals = (a, b) => {
if (a === b) return true;
if (a instanceof Date && b instanceof Date)
return a.getTime() === b.getTime();
if (!a || !b || (typeof a != 'object' && typeof b !== 'object'))
return a === b;
if (a === null || a === undefined || b === null || b === undefined)
return false;
if (a instanceof Date && b instanceof Date) return a.getTime() === b.getTime();
if (!a || !b || (typeof a != 'object' && typeof b !== 'object')) return a === b;
if (a === null || a === undefined || b === null || b === undefined) return false;
if (a.prototype !== b.prototype) return false;
let keys = Object.keys(a);
if (keys.length !== Object.keys(b).length) return false;
@ -23,5 +20,5 @@ const equals = (a, b) => {
```
```js
equals({ a: [2, {e: 3}], b: [4], c: 'foo' }, { a: [2, {e: 3}], b: [4], c: 'foo' }); // true
equals({ a: [2, { e: 3 }], b: [4], c: 'foo' }, { a: [2, { e: 3 }], b: [4], c: 'foo' }); // true
```