The hash value of the JS string

When making a small game, just start using random numbers, feel very fake, enter names, click OK, get random numbers,

The hash value of the string is now used, regardless of the input, the number of times entered, the final result is the same.

Because the hash value corresponding to the name is constant

The hash value of the name is used to find the remainder of the array.

      function GetHashCode (str,casesensitive) {if (!   casesensitive) {        = str.tolowercase ();    }     var hash  =   1315423911, i,ch;      for (i = str.length-1; I >= 0; i--) {        = str.charcodeat (i);         ^= ((hash << 5) + ch + (hash >> 2));    }     return  (Hash & 0x7FFFFFFF);}

The hash value of the JS string