LeetCode題目: 58. Length of Last Word My solution: /** * @param {string} s * @return {number} */ let lengthOfLastWord = s => s.trim().replace(/\s+/g, &...

LeetCode題目: 28. Find the Index of the First Occurrence in a String My solution: /** * @param {string} haystack * @param {string} needle * @return {numbe...

LeetCode題目: 27. Remove Element My solution: /** * @param {number[]} nums * @param {number} val * @return {number} */ let removeElement = (nums, val) =&...

LeetCode題目: 26. Remove Duplicates from Sorted Array My solution: /** * @param {number[]} nums * @return {number} */ let removeDuplicates = nums => { ...

LeetCode題目: 20. Valid Parentheses My solution: /** * @param {string} s * @return {boolean} */ let isValid = s => { const dict = { '(...