What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
What is the result of typeof Symbol('id')?
A). symbol
B). object
C). string
D). undefined
What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error
What will typeof [1, 2, 3] return?
A). array
B). object
C). number
D). list
Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
How do you declare a variable with an undefined value?
A). let x;
B). let x = '';
C). let x = 0;
D). let x = null;
What is the output of typeof function() {}?
A). function
B). object
C). undefined
D). number
What is the data type of an array in JavaScript?
A). Array
B). Object
C). Collection
D). List
What is the result of null === undefined?
A). 1
B). 0
C). Error
D). NaN
Which of the following is a falsy value in JavaScript?
A). 0
B).
C). null
D). All of the above