I believe you have set the variable n by mistake inside the for.
let array = [1, 2, 3, 4]; let newArray = []; for (let i = 0; i < array.length; i++) { newArray[i] = array[i] * 2; } console.log(newArray); // 2, 4, 6, 8
============================= High Order Functions
let numbers = [1, 2, 3, 4]; const result = numbers.map((n) => n * 2); console.log(result); // 2, 4, 6, 8
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I believe you have set the variable n by mistake inside the for.
let array = [1, 2, 3, 4];let newArray = [];
for (let i = 0; i < array.length; i++) {
newArray[i] = array[i] * 2;
}
console.log(newArray);
// 2, 4, 6, 8
=============================
High Order Functions
let numbers = [1, 2, 3, 4];const result = numbers.map((n) => n * 2);
console.log(result);
// 2, 4, 6, 8