ย้อนกลับ arrays กับสำหรับวง

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58
0

js วงอาเรย์กลับหลัง

let arr = [1, 2, 3];
arr.slice().reverse().forEach(x => console.log(x))
-1
0

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"]

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