Q
What is the result of 'Hello'.concat(' ', 'World')?

Answer & Solution

Answer: Option B
Solution:
The concat() method concatenates strings, and 'Hello'.concat(' ', 'World') results in 'Hello World'.
Related Questions on Average

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

Which method is used to find the length of a string?

A). length()

B). len()

C). size()

D). length

How do you convert a number to a string in JavaScript?

A). number.toString()

B). number.toText()

C). number.convert()

D). number.string()

Which method would you use to replace a part of a string with another string?

A). replace()

B). substitute()

C). change()

D). swap()

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

A). beginsWith()

B). startsWith()

C). isStart()

D). hasPrefix()

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 check if a string ends with a specific substring?

A). endsWith()

B). isEnd()

C). hasSuffix()

D). ends()

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

A). loop()

B). repeat()

C). times()

D). replicate()

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

A). trimStart()

B). trim()

C). trimWhitespace()

D). strip()

How do you declare a string in JavaScript?

A). var str = 'Hello';

B). var str = 'Hello';

C). var str = Hello;

D). All of the above