The Modern JavaScript Bootcamp (2019) - Exploring String Methods

This video tutorial explores JavaScript string methods and properties, focusing on practical applications like validating passwords. It covers the length property, toUpperCase, toLowerCase, includes, and trim methods. The tutorial emphasizes the importance of documentation and provides a challenge to create a password validation function using these methods.

What is the primary focus of the video regarding JavaScript string methods?

• Exploring built-in string methods

• Comparing string methods with array methods

• Creating new string methods

• Debugging string methods

What does the 'length' property of a string return?

• The number of words in the string

• The number of vowels in the string

• The number of characters in the string

• The number of spaces in the string

How do you access the 'length' property of a string in JavaScript?

• length.string

• string.length()

• string.length

• length.string()

What is the purpose of the 'toUpperCase' method in JavaScript?

• To convert a string to uppercase

• To convert a string to lowercase

• To find the length of a string

• To reverse a string

Why is documentation important when learning JavaScript?

• It provides examples of incorrect code

• It helps explore all features of the language

• It offers a platform for coding practice

• It lists all possible errors

What does the 'includes' method return if a string contains a specified substring?

• An integer

• A string

• A boolean

• An array

Which method would you use to check if a string contains another string?

• trim

• toUpperCase

• length

• includes

What is the function of the 'trim' method in JavaScript?

• To replace spaces with dashes

• To capitalize the first letter of each word

• To remove spaces from both ends of a string

• To add spaces to a string

What is the expected output of the 'trim' method if a string has spaces at both ends?

• The string unchanged

• The string with spaces removed from both ends

• The string with spaces doubled

• The string with spaces replaced by underscores

What criteria must a password meet to be considered valid in the challenge?

• Must be less than 8 characters

• Must be more than 8 characters and not contain 'password'

• Must be exactly 8 characters long

• Must contain the word 'password'