TypeScript for Beginners - String Functions
Interactive Video
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Information Technology (IT), Architecture
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University
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Practice Problem
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to find the first occurrence of a character in a string?
indexOf
substring
lastIndexOf
charAt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to check if a string starts with a specific sequence of characters?
indexOf
includes
endsWith
startsWith
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
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