JavaScript Algorithms and Data Structures Basic Java script

JavaScript
1

My question is I’m wondering why we put var lastNameLength = 0, like why is that equal to 0?

Your code so far


// Setup
var lastNameLength = 0;
var lastName = "Lovelace";

// Only change code below this line

lastNameLength = lastName.length;
console.log(lastNameLength);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36.

Challenge: Find the Length of a String

Link to the challenge:

2

You don’t have to, but you normally want to assign some value to a variable so the value of a variable won’t be undefined. A natural default value for lastNameLength is 0.

1 Like
3

Oh makes sense, thank you!

4

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