Q
How do you check if a string starts with a specific substring?

Answer & Solution

Answer: Option B
Solution:
The startsWith() method checks if a string starts with a specific substring.
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How do you convert a number to a string in JavaScript?

A). number.toString()

B). number.toText()

C). number.convert()

D). number.string()

What is the use of the String.raw method?

A). To create raw string literals

B). To create a raw copy of a string

C). To create a new string

D). To escape characters

How do you create a multi-line string in JavaScript?

A). Use single quotes

B). Use double quotes

C). Use backticks

D). Use escape characters

How do you repeat a string a specified number of times?

A). loop()

B). repeat()

C). times()

D). replicate()

How do you check if a string ends with a specific substring?

A). endsWith()

B). isEnd()

C). hasSuffix()

D). ends()

What is the result of '5' + 2 in JavaScript?

A). 52

B). 7

C). 5

D). Error

What does the split() method do?

A). Splits a string into characters

B). Splits a string into an array of substrings

C). Divides a string into two parts

D). Cuts a string in half

How do you trim whitespace from the beginning and end of a string?

A). trimStart()

B). trim()

C). trimWhitespace()

D). strip()

What does the charAt() method do?

A). Returns the ASCII value of a character

B). Returns the Unicode value of a character

C). Returns the character at a specified index

D). Returns the first character in a string

How do you convert a string to lowercase in JavaScript?

A). toLower()

B). lowerCase()

C). toLowerCase()

D). toSmall()