39. When would you use for vs forEach()?
for Loop vs forEach() 
for - More control, Can use break/continue, Faster in heavy loops 

forEach() - Cleaner syntax, Cannot stop early, Better readability

for Example

for (let i = 0; i < 3; i++) {
    console.log(i);
}

forEach() Example

[1, 2, 3].forEach(num => {
    console.log(num);
});

Interview Tip: 
Use forEach() for readability and for when more control is needed.

40. How do you handle early exits from loops?
Using break

for (let i = 1; i <= 5; i++) {
    if (i === 3) {
        break;
    }
    console.log(i);
}

Using return Inside Functions

function test() {
    for (let i = 1; i <= 5; i++) {
        if (i === 3) {
            return;
        }
        console.log(i);
    }
}

test();

Important:
forEach() does not support break directly.

Use:
• for
• for...of
• some()
• every()

for early exits.

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