MEMBER Method

The MEMBER method of VPGL Language reports the specified element belongs to the target array or not.

MEMBER takes 2 inputs and 1 output. MEMBER starts on both inputs are arrived. Input 0 must be an array and input 1 is an VPGL object. MEMBER compares each element of the array with input 1 by the same comparision manner of ==. If any element matches to input 1, MEMBER emits T to output0, otherwise emits NIL.