array fill

1    var numeroPerguntas = 5;     
2    var anyBoxesChecked = new Array(numeroPerguntas).fill(false);
3    console.log(anyBoxesChecked);

1let filledArray = new Array(10).fill({'hello':'goodbye'});

1const fill = new Array(5).fill(0)
2console.log(fill) // [ 0,0,0,0,0]

1new Array(5).fill('element')
2// ["element", "element", "element", "element", "element"]

1Array(24).fill(0)
2

1var arry = ["JavaScript", "Fill", "this", "Array"];
2arry.fill("Filled", 1, 3);
3
4console.log(arry);
5//Output: [‘JavaScript’, ‘Filled’, ‘Filled’, 'Array’]
6