22 lines
515 B
Markdown
22 lines
515 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
|
|
console.log(sdbm('age')); // 808122783
|
|
```
|