function gatheringIngredients(rawIngridient, callback) {
console.log("Menyiapkan bahan ....");
setTimeout(function() {
if(rawIngridient) {
const ingridient = `Bahan ${rawIngridient} sudah siap!`;
callback(ingridient);
}
}, 1000)
}
function makeTheDough(ingridient, callback) {
console.log("Membuat adonan ...." );
setTimeout(function() {
if(ingridient) {
const dough = "Adonan Selesai!"
callback(dough);
}
}, 2000)
}
function pourDough(dough, callback) {
console.log("Menyiapkan adonan ke cetakan .....")
setTimeout(function() {
const pouredDough = "Cetakan Adonan Selesai!";
callback(pouredDough);
}, 1000)
}
function bakeACake(pouredDough, callback) {
console.log("Memanggang kue ....");
setTimeout(function() {
const cake = "Kue sudah siap!";
callback(cake);
}, 3000)
}
/* callback hell terjadi di sini! */
function makeACake(...rawIngredients) {
gatheringIngredients(rawIngredients, function(ingridients) {
makeTheDough(ingridients, function(dough) {
pourDough(dough, function(pouredDough) {
bakeACake(pouredDough, function(cake) {
console.log(cake);
});
});
});
});
}
makeACake("Sugar", "Milk", "Butter");
/* output:
Menyiapkan bahan ....
Membuat adonan ....
Menyiapkan adonan ke cetakan .....
Memanggang kue ....
Kue sudah siap!
*/
const getCake = () => {
let cake = null;
console.log("Sedang membuat kue, silakan tunggu ....")
setTimeout(() => {
cake = "Kue Selesai!"
}, 3000)
return cake;
}
const cake = getCake();
console.log(cake);
/*output:
Sedang membuat kue, silakan tunggu ....
null
*/
const getCake = (callback) => {
let cake = null;
console.log("Sedang membuat kue, silakan tunggu ....")
setTimeout(() => {
cake = "Kue Selesai!"
callback(cake)
}, 3000)
return cake;
}
const cake = getCake(cake=>{
console.log(cake);
});
/*output:
Sedang membuat kue, silakan tunggu ....
null
*/
