freeCodeCamp Challenge Guide: Explore Differences Between the var and let Keywords

Guide
1

Explore Differences Between the var and let Keywords

Problem Explanation

We need to change each var to let in our code.

Hints

Hint 1

  • Find each var and replace with let.

Solutions

Solution 1 (Click to Show/Hide) 
let catName;
let quote;
function catTalk() {
  "use strict";

  catName = "Oliver";
  quote = catName + " says Meow!";
}
catTalk();

Code Explanation

By using let instead of var we can avoid overriding catName and quote.

Relevant Links

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