JavaScript Code


How to find the longest string in array using JavaScript?


Find the longest string in array in JavaScript

In this tutorial, you are given an array of strings. Write a JavaScript program to find the longest string in array.

Solution

To find the longest string in the given array of strings using JavaScript,

We use

Program

1. Given array of strings is strArray. Find the longest string.

function findLongestString(arr) {
  let longest = "";
      if (arr.length == 0) {
          return null;
      } else {
          longest = arr[0];
          for (let i = 1; i < arr.length; i++) {
              if ( longest.length < arr[i].length ) {
                  longest = arr[i];
              }
          }
          return longest;
      }
}

strArray = ["apple", "banana", "pineapple", "bean"];
longest = findLongestString(strArray);
console.log(longest);


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