js วงอาเรย์กลับหลัง
let arr = [1, 2, 3];
arr.slice().reverse().forEach(x => console.log(x))
อาเรย์ย้อนกลับกันสำหรับวง
function reverseArray (arr) {
var newArr = [];
var inArr = arr;
console.log(inArr);
for (i = 0; i < arr.length; i++) {
newArr[i] = inArr.pop(i);
}
return newArr;
}
reverseArray(["A", "B", "C", "D", "E", "F"]);
// OUTPUT: ["F", "D", "E"]