JSFiddle - React, Tailwind, and code Playground

JavaScript

var list = ['one','two','three'];

var x = 0;

var loopArray = function(arr) {
    customAlert(arr[x],function(){
        x++;
        if(x < arr.length) {
         	loopArray(arr);   
        }
    }); 
}
oopArray(list);

function customAlert(msg,callback) {
    console.log(msg);
    callback();
}