644. Array.fill Shared References

Easy•

Predict the output.

const arr = Array(2).fill({ x: 0 })
arr[0].x = 9
console.log(arr[1].x)

What is printed in the console?

09undefinedTypeError

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Easy•

Predict the output.

const arr = Array(2).fill({ x: 0 })
arr[0].x = 9
console.log(arr[1].x)

09undefinedTypeError

Select an option and submit your answer.

Next ProblemAuto-advance on correct answer