function()

in tool/seedrandom.js [100:122]

• 6 lines of code
• 4 McCabe index (conditional complexity)

      function (prng, seed, is_math_call, state) {
        if (state) {
          // Load the arc4 state from the given state if it has an S array.
          if (state.S) {
            copy(state, arc4);
          }
          // Only provide the .state method if requested via options.state.
          prng.state = function () {
            return copy(arc4, {});
          };
        }

        // If called as a method of Math (Math.seedrandom()), mutate
        // Math.random because that is how seedrandom.js has worked since v1.0.
        if (is_math_call) {
          math[rngname] = prng;
          return seed;
        }

        // Otherwise, it is a newer calling convention, so return the
        // prng directly.
        else return prng;
      }