TypeScript for Beginners - String Functions

The video tutorial explores various string methods in JavaScript, including length, charAt, indexOf, lastIndexOf, and others like split and substring. It demonstrates how to use these methods in TypeScript, compile the code, and test it in a web browser. The tutorial provides practical examples to illustrate the functionality of each method.

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

• The number of words in the string

• The number of characters in the string

• The number of spaces in the string

• The number of vowels in the string

Which method would you use to find the first occurrence of a character in a string?

• indexOf

• substring

• lastIndexOf

• charAt

How can you find the last occurrence of a character in a string?

• Using the split method

• Using the length property

• Using the lastIndexOf method

• Using the charAt method

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

• indexOf

• includes

• endsWith

• startsWith

What is the purpose of compiling TypeScript code before running it in a web browser?

• To improve its performance

• To check for syntax errors

• To convert it into a different programming language

• To transform it into JavaScript