1234567891011121314151617181920212223242526272829303132333435363738
export default function merge(    nums1: number[],    m: number,    nums2: number[],    n: number,): void {    if (n === 0) {        return;    }    if (m == 0) {        nums1.splice(0, n, ...nums2);        return;    }    const temp = nums1.slice(0, m);    nums1.length = 0;    while (temp.length > 0 && nums2.length > 0) {        if (temp[0] > nums2[0]) {            const first2 = nums2.shift();            if (typeof first2 === "undefined") {                throw Error("Invalid number");            }            nums1.push(first2);        } else {            const first1 = temp.shift();            if (typeof first1 === "undefined") {                throw Error("Invalid number");            }            nums1.push(first1);        }    }    if (nums2.length) {        nums1.push(...nums2);    }    if (temp.length) {        nums1.push(...temp);    }}