JavaScript: Accept a list of words and returns the longest
JavaScript Function: Exercise-25 with Solution
Write a JavaScript function that accept a list of country names as input and returns the longest country name as output
Sample function : Longest_Country_Name(["Australia", "Germany", "United States of America"])
Expected output : "United States of America"
Pictorial Presentation:

Sample Solution: -
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Find longest word</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function Longest_Country_Name(country_name)
{
return country_name.reduce(function(lname, country)
{
return lname.length > country.length ? lname : country;
},
"");
}
console.log(Longest_Country_Name(["Australia", "Germany", "United States of America"]));
Output:
United States of America
Flowchart:

Live Demo:
See the Pen JavaScript - Bubble Sort algorithm-function-ex- 24 by w3resource (@w3resource) on CodePen.
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Next: Write a JavaScript function to find longest substring in a given a string without repeating characters.
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JavaScript: Tips of the Day
How to check whether a string contains a substring in JavaScript?
ECMAScript 6 introduced String.prototype.includes:
const string = "foo"; const substring = "oo"; console.log(string.includes(substring));
includes doesn't have Internet Explorer support, though. In ECMAScript 5 or older environments, use String.prototype.indexOf, which returns -1 when a substring cannot be found:
var string = "foo"; var substring = "oo"; console.log(string.indexOf(substring) !== -1);
Ref: https://bit.ly/3fFFgZv
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