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

Answer & Solution

Answer: Option A
Solution:
In JavaScript, if you use the + operator with a string and a number, the number is converted to a string and concatenated. The result is '52'.
Related Questions on Average

Which method would you use to check if a string contains a specified substring?

A). contains()

B). includes()

C). has()

D). indexOf()

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

What does the padStart() method do?

A). Adds padding to the beginning of a string

B). Adds padding to the end of a string

C). Adds padding to both ends of a string

D). Removes padding from the beginning of a string

Which method can be used to search for a specified value in a string and return its position?

A). search()

B). find()

C). indexOf()

D). locate()

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

A). beginsWith()

B). startsWith()

C). isStart()

D). hasPrefix()

How do you convert a string to lowercase in JavaScript?

A). toLower()

B). lowerCase()

C). toLowerCase()

D). toSmall()

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

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

A). trimStart()

B). trim()

C). trimWhitespace()

D). strip()

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

A). length()

B). len()

C). size()

D). length

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

A). loop()

B). repeat()

C). times()

D). replicate()