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lab solved #1736

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143 changes: 127 additions & 16 deletions javascript/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,37 +4,148 @@
// 🚨🚨🚨 Comment out the below code before you start working on the code

// Out of sync
getInstruction("mashedPotatoes", 0, (step1) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step1}</li>`;
}, (error) => console.log(error));
// getInstruction("mashedPotatoes", 0, (step1) => {
// document.querySelector("#mashedPotatoes").innerHTML += `<li>${step1}</li>`;
// }, (error) => console.log(error));

getInstruction("mashedPotatoes", 1, (step2) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step2}</li>`;
}, (error) => console.log(error));
// getInstruction("mashedPotatoes", 1, (step2) => {
// document.querySelector("#mashedPotatoes").innerHTML += `<li>${step2}</li>`;
// }, (error) => console.log(error));

getInstruction("mashedPotatoes", 2, (step3) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step3}</li>`;
}, (error) => console.log(error));
// getInstruction("mashedPotatoes", 2, (step3) => {
// document.querySelector("#mashedPotatoes").innerHTML += `<li>${step3}</li>`;
// }, (error) => console.log(error));

getInstruction("mashedPotatoes", 3, (step4) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step4}</li>`;
}, (error) => console.log(error));
// getInstruction("mashedPotatoes", 3, (step4) => {
// document.querySelector("#mashedPotatoes").innerHTML += `<li>${step4}</li>`;
// }, (error) => console.log(error));

getInstruction("mashedPotatoes", 4, (step5) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step5}</li>`;
document.querySelector("#mashedPotatoesImg").removeAttribute("hidden");
}, (error) => console.log(error));
// getInstruction("mashedPotatoes", 4, (step5) => {
// document.querySelector("#mashedPotatoes").innerHTML += `<li>${step5}</li>`;
// document.querySelector("#mashedPotatoesImg").removeAttribute("hidden");
// }, (error) => console.log(error));



// Iteration 1 - using callbacks
// ...
getInstruction('mashedPotatoes', 0, (step0) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step0}</li>`;

getInstruction('mashedPotatoes', 1, (step1) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step1}</li>`;

getInstruction('mashedPotatoes', 2, (step2) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step2}</li>`;

getInstruction('mashedPotatoes', 3, (step3) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step3}</li>`;

getInstruction('mashedPotatoes', 4, (step4) => {
document.querySelector("#mashedPotatoes").innerHTML += `<li>${step4}</li>`;

// Final step
document.querySelector("#mashedPotatoes").innerHTML += "<li>Mashed potatoes are ready!</li>";
document.querySelector("#mashedPotatoesImg").removeAttribute("hidden");
}, (error) => console.log(error));
}, (error) => console.log(error));
}, (error) => console.log(error));
}, (error) => console.log(error));
}, (error) => console.log(error));

// Iteration 2 - using promises
// ...
obtainInstruction('steak', 0)
.then((step0) => {
document.querySelector("#steak").innerHTML += `<li>${step0}</li>`;
return obtainInstruction('steak', 1);
})
.then((step1) => {
document.querySelector("#steak").innerHTML += `<li>${step1}</li>`;
return obtainInstruction('steak', 2);
})
.then((step2) => {
document.querySelector("#steak").innerHTML += `<li>${step2}</li>`;
return obtainInstruction('steak', 3);
})
.then((step3) => {
document.querySelector("#steak").innerHTML += `<li>${step3}</li>`;
return obtainInstruction('steak', 4);
})
.then((step4) => {
document.querySelector("#steak").innerHTML += `<li>${step4}</li>`;
return obtainInstruction('steak', 5);
})
.then((step5) => {
document.querySelector("#steak").innerHTML += `<li>${step5}</li>`;
return obtainInstruction('steak', 6);
})
.then((step6) => {
document.querySelector("#steak").innerHTML += `<li>${step6}</li>`;
return obtainInstruction('steak', 7);
})
.then((step7) => {
document.querySelector("#steak").innerHTML += `<li>${step7}</li>`;
// Final message
document.querySelector("#steak").innerHTML += "<li>Steak is ready!</li>";
document.querySelector("#steakImg").removeAttribute("hidden");
})
.catch((error) => console.error(error));

// Iteration 3 using async/await
// ...
async function makeBroccoli() {
try{
const step0 = await obtainInstruction('broccoli',0);
document.querySelector("#broccoli").innerHTML += `<li>${step0}</li>`;

const step1 = await obtainInstruction('broccoli',1);
document.querySelector("#broccoli").innerHTML += `<li>${step1}</li>`;

const step2 = await obtainInstruction('broccoli',2);
document.querySelector("#broccoli").innerHTML += `<li>${step2}</li>`;

const step3 = await obtainInstruction('broccoli',3);
document.querySelector("#broccoli").innerHTML += `<li>${step3}</li>`;

const step4 = await obtainInstruction('broccoli',4);
document.querySelector("#broccoli").innerHTML += `<li>${step4}</li>`;

const step5 = await obtainInstruction('broccoli',5);
document.querySelector("#broccoli").innerHTML += `<li>${step5}</li>`;

const step6 = await obtainInstruction('broccoli',6);
document.querySelector("#broccoli").innerHTML += `<li>${step6}</li>`;

document.querySelector("#broccoli").innerHTML += "<li>Broccoli is ready!</li>";
document.querySelector("#broccoliImg").removeAttribute("hidden");
} catch(error){
console.log(error);
}
}
makeBroccoli();


// Bonus 2 - Promise all
const brusselsSproutsSteps = [
obtainInstruction('brusselsSprouts', 0),
obtainInstruction('brusselsSprouts', 1),
obtainInstruction('brusselsSprouts', 2),
obtainInstruction('brusselsSprouts', 3),
obtainInstruction('brusselsSprouts', 4),
obtainInstruction('brusselsSprouts', 5),
obtainInstruction('brusselsSprouts', 6),
obtainInstruction('brusselsSprouts', 7)
];

Promise.all(brusselsSproutsSteps)
.then((steps) => {
steps.forEach((step) => {
document.querySelector("#brusselsSprouts").innerHTML += `<li>${step}</li>`;
});
// Final message after all steps
document.querySelector("#brusselsSprouts").innerHTML += "<li>Brussels sprouts are ready!</li>";
document.querySelector("#brusselsSproutsImg").removeAttribute("hidden");
})
.catch((error) => console.error('Error in processing brussels sprouts:', error));
// ...