16 lines
401 B
Markdown
16 lines
401 B
Markdown
### symmetricDifference
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Returns the symmetric difference between two arrays.
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Create a `Set` from each array, then use `Array.filter()` on each of them to only keep values not contained in the other.
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```js
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const symmetricDifference = (a, b) => [
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...new Set([...a.filter(v => !b.includes(v)), ...b.filter(v => !a.includes(v))])
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];
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```
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```js
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symmetricDifference([1, 2, 3], [1, 2, 4]); // [3,4]
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```
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