Simple Hash

gistfile1.js

function simple_hash(key,table_size) {
    var hash = 0;

    for (var i = 0; i < key.length; i++) {
	hash = (hash * 31) + key.charCodeAt(i);
    }

    return Math.abs(hash) % table_size;
}

console.log(simple_hash("Galen",100));