JSFiddle - React, Tailwind, and code Playground
by Prashant Tapase
JavaScript
function arrayContains(array, value){
return array.indexOf(value) > -1;
}
var possibleOptions = ["male", "female", "m", "f"];
var gender = prompt("What's your gender?","");
while(!arrayContains(possibleOptions, gender))
gender = prompt("Invalid input. What's your gender?");
var name = prompt("What's your name?","");
var greeting = (gender == "male" || gender == "m") ? "Sup dude." : "Sup girl.";
alert("Hello, " + name + "! " + greeting);