External module "utils/memoize/docs/types/index.d"

Export assignment memoize

• memoize(fcn: Function, hashFunction?: Function): Function

• Returns a memoized function.

  Notes

  • The function does not set the length property of the returned function. Accordingly, the returned function length is always zero.
  • The evaluation context is always null.
  • The function serializes provided arguments as a string and stores results using the string as an identifier. To use a custom hash function, provide a hash function argument.

  Parameters

  • fcn: Function

    function to memoize

  • Optional hashFunction: Function

    function to map a set of arguments to a single value identifying that set

  Returns Function

  memoized function

  Example

  function factorial( n ) {
      var prod;
      var i;
      prod = 1;
      for ( i = n; i > 1; i-- ) {
          prod *= i;
      }
      return prod;
  }
  
  var memoized = memoize( factorial );
  
  var v = memoized( 5 );
  // returns 120
  
  v = memoized( 5 );
  // returns 120