javascript - 反转JavaScript中的整数

我编写了以下代码来反转JavaScript中的整数。它工作正常，但在输入-900000时返回0。有谁知道可能是错的吗？

/**
 * @param {number} x
 * @return {number}
 */
var reverse = function(x) {
    var negative_number= false;
    var k;
    var new_string;
    if(x<0){
        negative_number = true;
        x=Math.abs(x);
    }
    var n = x.toString(); // convert from number to string
        // Step 1. Use the split() method to return a new array
    var splitString = n.split(""); // var splitString = "hello".split("");
    // ["h", "e", "l", "l", "o"]
    if (negative_number)
    {
        for (var i=0; i< splitString.length-1; i++)
        {
            splitString[i]=splitString[i+1];
        }
    }
    // Step 2. Use the reverse() method to reverse the new created array
    var reverseArray = splitString.reverse(); // var reverseArray = ["h", "e", "l", "l", "o"].reverse();
    // ["o", "l", "l", "e", "h"]

    // Step 3. Use the join() method to join all elements of the array into a string
    var joinArray = reverseArray.join(""); // var joinArray = ["o", "l", "l", "e", "h"].join("");
    // "olleh"
    //return joinArray;
    var number = Number(joinArray);
    if (negative_number)
        number= -Math.abs(number);
    //Step 4. Return the reversed string
    return number;
};

最佳答案

您无需从负数中去除-符号，您已经将绝对值作为x了。删除循环移动数字并破坏您的值的循环。