topic description
instead of using for loops, an array is returned based on the passed parameters
sources of topics and their own ideas
when I saw the face-to-face test questions on the Internet, when I typed, I found that some of the code using comments was incorrect, and I don"t know why
related codes
var num = 5;
function show(n) {
var arr = [];
return (function fn() {
arr.unshift(n);
n --;
if(n != 0) {
fn()
}
// else {
// return arr;
// }
return arr;
})()
}