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Javascript problems 👨‍💻

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2 677

Continue posting challenges?

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2 677

What will the code log

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Why does this Timer component cause a memory leak?

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What will happen? const arr = [1, 2, 3]; arr[10] = 5; console.log(arr.length);

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How to clone an object correctly?** let user = {name: 'John'}.

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console.log([1, 2, 3].filter(x => x > 1));

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What does document.querySelector() return?

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What will be the output here?

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What does const actually mean?

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How to stop event bubbling?

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What will be the output?

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What will be the output?

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