Front End Web Developer Question:
Download Job Interview Questions and Answers PDF
What Is The Difference Between Null And Undefined?
Answer:
null is an object with no value. undefined is a type.
typeof null; // "object"
typeof undefined; // "undefined"
typeof null; // "object"
typeof undefined; // "undefined"
Download Front End Web Developer Interview Questions And Answers
PDF
| Previous Question | Next Question |
| Tell us what are the advantages of using JavaScript? | Tell me how To Use A Function A Class? |