How to subtract from array

Question

This is an array given below I want to subtract 10 from each of the list numbers

numbers = [30, 80, 40]
And output the numbers In an ARRAY

https://sololearn.com/coach/983/?ref=app

Answer 1

with for loop access each element of array and subtract 10 with each iteration

Answer 2

You can do like this,

var list = [30, 80, 40]
for (let i=0 ; i < 3 ; i++){
list[i] = list[i] - 10
}
console.log(list)
//[20, 70, 30]

Now the all elements of the list, will be subtracted by 10!

Answer 3

With for loop connect to each index and change its value.

Answer 4

const num = numbers.map(n=>n-10);