What does the isNaN() function?
What is the output of 10+20+”30″ in JavaScript?
Difference between Client side JavaScript and Server side JavaScript?
What is the real name of JavaScript?
How to define a named function in JavScript?
What is the difference between undefined value and null value?
What is the lifecycle methods order in mounting?
What are higher order components(hoc)?
What are the advantages of redux?
How to update a component every second?
What do you understand with the term polling?
What is an event in react?
What are the lifecycle methods going to be deprecated in react v16?
How do you tell react to build in production mode and what will that do?
How to use https instead of http in create-react-app?