The effect is very bad.

[nonusx]

input:

 const printX = n => {
    n--;
    let zu = [];

    for (let i = 0; i <= n; i++) {
    ... //more code

output:

 const printX = n => {
    n--
    let zu = []

    for let i = 0; i <= n; i++:
    ... #more code

I think it's very bad.