return longest substring javascript code example

Example 1: js find longest word in string function

function findLongestWordLength(str) {
  return Math.max(...str.split(' ').map(word => word.length));
}

Example 2: find longest word in string javascript

function data(str){
           var show = str.split(" ");
            show.sort(function (a,b){
                return b.length - a.length; 
            })
            return show[0];
      }
      console.log(data(str = "javascript is my favourite language "));