Help with Apply Functional Programming to Convert Strings to URL Slugs

JavaScript
1

Tell us what’s happening:

GlobalTitle did not change when i log to console but thats the error i keep receiving. I tried re-assigning title to new var but its still thesame.

Your code so far


// the global variable
var globalTitle = "Winter Is   Coming";

// Add your code below this line
function urlSlug(title) {
 return title.slice().split(/\W/).filter(a => a !== "").join("-").toLowerCase();

  
  
}
// Add your code above this line

var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
console.log(winterComing);

console.log(globalTitle);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.157 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs

3

Thanks, that works. Hope the code follows functional programming rule ?