JSFiddle - React, Tailwind, and code Playground

JavaScript

var badList = ['c', 'd'];
var myArray = ['a', 'b', 'c', 'd'];

var removeFromList = function(badlist, arrayToBeFiltered) {
	var arrayLength = arrayToBeFiltered.length;
	var badArrayLength = badlist.length;
	for (var p = 0; p < arrayLength; p++) {
		for (var i = 0; i < badArrayLength; i++) {
			var index = arrayToBeFiltered.indexOf(badList[i]);
			if (index > -1) {
				arrayToBeFiltered.splice(index, 1);
			}			
		}

	}
	
	return arrayToBeFiltered;
}

console.log(removeFromList(badList, myArray));