30-seconds-of-code
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A collection of useful JavaScript snippets.
21 lines (16 loc) • 420 B
Markdown
Hashes the input string into a whole number.
Use `String.split('')` and `Array.reduce()` to create a hash of the input string, utilizing bit shifting.
```js
const sdbm = str => {
let arr = str.split('');
return arr.reduce(
(hashCode, currentVal) =>
(hashCode = currentVal.charCodeAt(0) + (hashCode << 6) + (hashCode << 16) - hashCode),
0
);
};
```
```js
sdbm('name'); // -3521204949
```