JavaScript General Knowledge

Question 1

What is the piece of code written between curly braces { } of an if statement is called?

Answer 1

Code block

Question 2

Can you create multiple word property names? How is this done?

Answer 2

Yes they must be created in quotes.

Question 3

Describe the function of the colon ’:’ character in a ternary expression with multiple cases.

Answer 3

The ’:’ character works essentially as an ‘else if’ clause after the second case.

Question 4

How are default parameters specified?

Answer 4

By assigning the parameters in the parentheses a value using =.

If given no value or undefined for name when called, the function will use ‘stranger’.

Question 5

How are function expressions declared using arrow notation?

Answer 5

As function expressions are usually declared, minus the function keyword, and adding the fat arrow => between the parentheses and the code block.

Question 6

How are multi-line comments fomatted?

Answer 6

By commenting between /* and */.

Question 7

How are parameters specified in function declarations?

Answer 7

Within the parentheses, separated by commas.

Question 8

How are single line comments formatted?

Answer 8

Using //

Question 9

How are template literals formatted?

Answer 9

Using backticks `` instead of quotation marks

Question 10

How are variables inserted into template literals?

Answer 10

Inside the curly braces of ${}.