JSFiddle - React, Tailwind, and code Playground

by KyleMuir

JavaScript

var a = ['white', 'blue'];
var b = ['green', 'yellow'];
var c = ['black'];
var d = ['yellow', 'blue', 'pink'];
var e = ['orange', 'red'];
var f = ['brown', 'white'];
var userInput = ['white', 'yellow', 'pink', 'magenta'];

_.each(userInput, function(input) {
    var distinctArray = _.union(a,b,c,d,e,f);
    var exists = _.filter(distinctArray, function(colour) { return colour === input; });
    if (exists.length > 0) {
        alert('selected colour ' + input + ' exists in an array');   
    } else {
        alert('selected colour ' + input + ' does NOT exist in an array');
    }
});