leetcoode14: 最长公共前缀 about front-end-interview HOT 2 OPEN

var longestCommonPrefix = function(strs) {
    let n = strs.length;
    if(n === 0) return '';
    let ans = strs[0];
    for(let i = 1; i < n; i++) {
        let j = 0
        for(; j < ans.length && j < strs[i].length; j++) {
            if(ans[j] !== strs[i][j]) {
                break;
            }
        }
        ans = ans.substr(0, j);
        if(ans === '') return '';
    }
    return ans;
};
作者：guanpengchn
链接：https://leetcode-cn.com/problems/longest-common-prefix/solution/hua-jie-suan-fa-14-zui-chang-gong-gong-qian-zhui-b/
来源：力扣（LeetCode）