diff --git a/snippets/sdbmHashAlgorithm.md b/snippets/sdbmHashAlgorithm.md new file mode 100644 index 000000000..a77745176 --- /dev/null +++ b/snippets/sdbmHashAlgorithm.md @@ -0,0 +1,17 @@ +### sdbmHashAlgorithm + +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) +} +// console.log(sdbm("name")) // -3521204949 +// console.log(sdbm("age")) // 808122783 +``` +