What are global variables? How are these variable declared and what are the problems associated with using them?
516Explain the working of timers in JavaScript? Also elucidate the drawbacks of using the timer, if any?
564
What are undefined and undeclared variables?
What is NaN?
Write the code for adding new elements dynamically?
What is javascript and how it works?
What is js injection?
Difference between Client side JavaScript and Server side JavaScript?
What does "1"+2+3 evaluate to?
Why are callbacks used?
Explain a story about javascript performance problems?
What are the different functional component in javascript?
What is are the types of the pop up box es available in javascript?
What is an empty html tag?
How do you check if a string is a number javascript?
What is a currying function?
When do we use JSON.stringify()?