How would you check if a variable is null/undefined?
No Answer is Posted For this Question
Be the First to Post Answer
How will you get the checkbox status whether it is checked or not?
What is NaN in Javascript?
How to comment javascript code?
Consider the following code: 1 2 3 4 5 (function() { var a = b = 5; })(); console.log(b); what will be printed on the console?
What do “1”+2+4 evaluate to?
What is a way to append a value to an array?
Name the two functions that are used to create an HTML element dynamically?
What is event in javascript?
How do I unblock javascript in chrome?
Can you run javascript in notepad?
What are all the types of Pop up boxes available in JavaScript?
Which built-in method returns the character at the specified index?