可以使用循环遍历数组中的每个字符串,比较它们的长度并记录下最长的字符串。以下是一个Javascript代码示例:
function findLongestString(arr) {
let longest = "";
arr.forEach(str => {
if (str.length > longest.length) {
longest = str;
}
});
return longest;
}
const arr = ["apple", "banana", "cherry", "dragonfruit"];
const longestString = findLongestString(arr);
console.log(longestString); // 输出 "dragonfruit"