Modern JavaScript from the Beginning - Second Edition - Operators

This video tutorial covers various operators in JavaScript, including arithmetic, concatenation, exponent, increment, decrement, assignment, and comparison operators. It explains how each operator functions and provides examples of their usage in expressions. The tutorial also highlights the importance of understanding these operators for future topics like type coercion.

Which operator is used to find the remainder of a division in JavaScript?

• -

• +

• *

• %

What is the result of the expression 'Hello' + 'World' in JavaScript?

• Hello World

• HelloWorld

• Hello+World

• Error

How do you express 2 raised to the power of 3 in JavaScript?

• 2^3

• 2**3

• 2*3

• 2^^3

Which operator can be used to increase a variable's value by 1?

• +=

• --

• -=

• ++

What does the expression 'x += 5' do?

• Multiplies x by 5

• Subtracts 5 from x

• Adds 5 to x

• Assigns 5 to x

Which operator checks both value and type equality in JavaScript?

• !==

• !=

• ===

• ==

What will the expression '10 > 5' return?

• undefined

• true

• false

• null