JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - String Methods / 010

This video tutorial covers various string methods in programming, including uppercase, lowercase, indexOf, lastIndexOf, replace, replaceAll, substring, and slice. It explains how these methods can be used to manipulate strings, extract substrings, and check for specific conditions using boolean methods like startsWith and includes. The tutorial provides practical examples and highlights the importance of understanding index positions and case sensitivity in string operations.

What method would you use to convert a string to all uppercase letters?

• toTitleCase()

• capitalize()

• toLowerCase()

• toUpperCase()

Which method returns the position of the first occurrence of a specified character in a string?

• lastIndexOf()

• indexOf()

• charAt()

• find()

What will the indexOf method return if the character is not found in the string?

• undefined

• null

• 0

• -1

If you want to replace all occurrences of a character in a string, which method should you use?

• substitute()

• replace()

• replaceAll()

• swap()

How does the replace method differ from replaceAll?

• Both change the first occurrence

• replace changes all occurrences, replaceAll changes the first

• Both change all occurrences

• replace changes the first occurrence, replaceAll changes all

What is the difference between the substring and slice methods?

• substring includes the end index, slice does not

• slice includes the end index, substring does not

• Both include the end index

• Neither includes the end index

What will the slice method return if the start index is greater than the end index?

• An empty string

• The entire string

• null

• undefined

Which method would you use to check if a string starts with a specific sequence of characters?

• beginsWith()

• startsWith()

• hasPrefix()

• endsWith()

Which method can be used to determine if a string contains a specific substring?

• contains()

• hasSubstring()

• includes()

• findSubstring()

Which method would you use to check if a string ends with a specific character?

• startsWith()

• endsWith()

• finishesWith()

• concludesWith()