What is the purpose of using the === operator in JavaScript?
A). Strict equality comparison
B). Loose equality comparison
C). Assignment operator
D). Addition operator
Which data type is used to represent whole numbers in JavaScript?
A). number
B). integer
C). float
D). string
What is the keyword used to declare variables in JavaScript?
A). let
B). variable
C). var
D). const
What is the value of x after the following code executes: let x = 5; x *= 2; x /= 3;?
A). 04-Oct
B). 6666666666667
C). 5
D). undefined
Which of the following is NOT a valid variable name in JavaScript?
A). _myVariable
B). 2ndVariable
C). $myVariable
D). my-Variable
Which statement correctly assigns the value true to a boolean variable isLogged in JavaScript?
A). let isLogged = 'true';
B). let isLogged = true;
C). let isLogged = 1;
D). let isLogged = 0;
What will be the output of the following code: console.log(typeof 'Hello');?
A). string
B). number
C). undefined
D). boolean
Which keyword is used to declare a constant variable in JavaScript?
A). const
B). let
C). var
D). constant
What will be the output of the following code: console.log('Hello ' + 'World');?
A). Hello World
B). Hello + World
C). Hello +World
D). HelloWorld
What will be the value of x after the following code executes: let x = '5' + 5;?
A). '55'
B). 10
C). 5
D). '10'