无法发布全局数组变量

Question

 let Array = [1, 2, 3, 5, 5] for (i = 0; i <= Array.length; i++) { let j = Math.abs(Array[i] - 1); // [0, 1, 2, 4, 4] Array[j] = Math.abs(array(j) *- 1); // [-1, -2, -3, 5, -5] } console.log(Array);

Uncaught ReferenceError: array is not defined

Can anyone please explain to me why my array will not console.log. I'm sorry if this is a really rudimentary question. Thank you

Answer 1

You cant create Array var since it is a reserved word for constructor Array

Answer 2

Because Array is a reserved Javascript word, you need to use an array (lowercase). Change Array -> array;

And you need to change parentheses to square brackets Array[j] = Math.abs(array(j) *- 1); to Array[j] = Math.abs(array[j] *- 1);

Solution :

let array = [1, 2, 3, 5, 5]

for (i = 0; i <= array.length; i++) {
  let j = Math.abs(array[i] - 1); // [0, 1, 2, 4, 4]
  array[j] = Math.abs(array[j] *- 1); // [-1, -2, -3, 5, -5]
}
console.log(array);

Answer 3

You can't create a variable named Array since it is a reserved word for the constructor Array .