Operators

Question 1

What’s the symbol for arithmetic operator modulus? It’s action?

Answer 1

Percent sign. It will return the division remainder.

Question 2

What’s the symbol for arithmetic operators increment and decrement? It’s action?

Answer 2

Two plus signs (will add by 1); two minus signs (will subtract by 1).

Question 3

Explain what these assignment operators (+= or -= or *= or /= or %=) are saying when used here like x += y

Answer 3

x = x + y OR x = x % y

Question 4

What’s the difference b/w the comparison operators == (or !=) and === (or !==)?

Answer 4

The first is comparing to see if the values are equal (or not equal) and the second is comparing both value and data type.

Question 5

What are 3 logical operators?

Answer 5

And &&, or ||, not !

Question 6

What are 2 type operators and what do they do?

Answer 6

typeof returns the type of a variable; instanceof returns true if an object is an instance of an object type

Question 7

In this expression, which is the operator and which is the operand? 100 + 50

Answer 7

100 and 50 are the operands, and + is the operator.