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The JavaScript Interview Handbook: 100+ Interview Questions

Quiz: Closure, `setTimeout`, IIFE

Explore key JavaScript concepts through a quiz focused on closures setTimeout and IIFE. This lesson helps you understand their behavior in coding scenarios to strengthen your interview readiness with practical problem-solving.

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In this quiz, you will have to find solutions to the ...

Javascript (babel-node)
const array = [5, 11, 18, 25];
for (var i = 0; i < array.length; i++) {
  setTimeout(function() {
    console.log('Element: ' + array[i] + ', at index: ' + i);
    }, 3000);
}

The ...