Javascript:Guess output of code

Guess Output of following code.

Code:

let arr=["apple", "banana", "cherry"];

let [a,...rest]=arr.reverse();

console.log(a);

console.log(rest);

Output:

cherry

[ 'banana', 'apple' ]

Explaination:

1. The array `arr` is defined with three elements: "apple", "banana", and "cherry".

2. The `reverse()` method is called on the array, which reverses the order of the

elements in the array. After reversing, the array becomes ["cherry", "banana", "apple"].

3. The destructuring assignment `[a, ...rest]` is used to extract values from the

reversed array:- `a` takes the first element of the reversed array, which is "cherry".

   - `...rest` collects the remaining elements into a new array, which

is ["banana", "apple"].

4. Finally, `console.log(a)` prints "cherry", and `console.log(rest)`

prints the array ["banana", "apple"].

Javascript:convert given asyncronous code to syncronous

Modify the code snippet 1 so that function logic  is executed synchronously.

Code Snippet 1:

function myLogic() {

    setTimeout(() => {

        console.log("Logic executed");

    }, 2000);

}

console.log("Before executing logic");

myLogic();

console.log("After executing logic");

Output:

Before executing logic

After executing logic

Logic executed

Code Snippet 2:

function myLogic() {

    new Promise((resolve, reject) => {

        setTimeout(() => {

            console.log("Logic executed");

            resolve();

        }, 2000);

    })

}

console.log("Before executing logic");

myLogic();

console.log("After executing logic");

Output:

Before executing logic

After executing logic

Logic executed

Code Snippet 3 :Final Change

async function myLogic() {

    await new Promise((resolve, reject) => {

        setTimeout(() => {

            console.log("Logic executed");

            resolve();

        }, 2000);

    })

}

console.log("Before executing logic");

await myLogic();

console.log("After executing logic");

Output:

Before executing logic

Logic executed

After executing logic