Files
30-seconds-of-code/snippets/sdbm.md
Angelos Chalaris 8281457945 Updated examples
Removed duplicate and unnecessary examples.
2018-01-04 14:22:56 +02:00

21 lines
476 B
Markdown

### sbdm
This algorithm is a simple hash-algorithm that hashes it input string `s` into a whole number.
Use `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
console.log(sdbm('name')); // -3521204949
```