LeetCode14 最长公共前缀

/**
 * @param {string[]} strs
 * @return {string}
 */
var longestCommonPrefix = function (strs) {
    var str = "";

    for (let index = 0; index < strs[0].split('').length; index++) {
        let item = strs[0].split('')[index];
        let result = true;
        for (let i = 0; i < strs.length; i++) {
            if (item != strs[i][index]) {
                result = false;
                break;
            }
        }
        if (result) {
            str += item;
        } else {
            break;
        }
    }
    return str;
};