function myGFG() {
 
    // First function
    function function1() {
        console.log("First Function");
    }
 
    // Second function
    function function2() {
        console.log("Second Function");
    }
 
    let orderQueue = [];
 
    // Push them in queue
    orderQueue.push(function1);
    orderQueue.push(function2);
 
    while (orderQueue.length > 0) {
     
        // Execute in order
        orderQueue.shift()();
    }
 
    console.log("Functions executed in queue order");
}
 
myGFG();

First Function
Second Function
Functions executed in queue order

function myGFG() {
 
    // First function
    function function1() {
        console.log("First Function");
    }
 
    // Second function
    function function2() {
        console.log("Second Function");
    }
 
    let functions = new Array();
 
    // Adding the functions in the order
    // in queue(array)
    functions[0] = function1;
    functions[1] = function2;
     
    for (let i = 0; i < functions.length; i++) {
 
        // Executing them in order.
        functions[i].call();
    }
     
    console.log("Functions executed in queue order");
}
 
myGFG();

First Function
Second Function
Functions executed in queue order