freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/find-the-length-of-a-string.english.md

id	title	challengeType	videoUrl	forumTopicId
bd7123c9c448eddfaeb5bdef	Find the Length of a String	1	https://scrimba.com/c/cvmqEAd	18182

Description

You can find the length of a String value by writing .length after the string variable or string literal. "Alan Peter".length; // 10 For example, if we created a variable var firstName = "Charles", we could find out how long the string "Charles" is by using the firstName.length property.

Instructions

Use the .length property to count the number of characters in the lastName variable and assign it to lastNameLength.

Tests

tests:
  - text: 'You should not change the variable declarations in the <code>// Setup</code> section.'
    testString: assert(code.match(/var lastNameLength = 0;/) && code.match(/var lastName = "Lovelace";/));   
  - text: <code>lastNameLength</code> should be equal to eight.
    testString: assert(typeof lastNameLength !== 'undefined' && lastNameLength === 8); 
  - text: 'You should be getting the length of <code>lastName</code> by using <code>.length</code> like this: <code>lastName.length</code>.'
    testString: assert(code.match(/=\s*lastName\.length/g) && !code.match(/lastName\s*=\s*8/));

Challenge Seed

// Example
var firstNameLength = 0;
var firstName = "Ada";

firstNameLength = firstName.length;

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

// Only change code below this line.

lastNameLength = lastName;

Solution

var firstNameLength = 0;
var firstName = "Ada";
firstNameLength = firstName.length;

var lastNameLength = 0;
var lastName = "Lovelace";
lastNameLength = lastName.length;