Q2. What is ‘this’ keyword?
A: ‘This’ keyword is used to point at the current object in code.
A: For Single line comments => //
For multi line comments => /* test */
Q4: What is the use of === operator?
A: === is called as strict equality operator, which returns true when two operands are having same value without any type conversion.
Q5: What is the use of isNaN function?
A: isNan function returns true if the argument is not a number otherwise it is false.