What is NaN in JavaScript?
Submitted by: AdministratorNan is literally "Not-a-Number". NaN usually results when either the result or one of the values in an operation is non-numeric. Even though NaN is not a number, 'console.log(typeof NaN === "number");' logs true, while NaN compared to anything else (including NaN) logs false. The only real way to test if a value is equal to NaN is with the function 'isNaN()'.
Submitted by:
Submitted by:
Read Online Expert Developer JavaScript Job Interview Questions And Answers
Top Expert Developer JavaScript Questions
| ☺ | Mention what is the disadvantage of using innerHTML in JavaScript? |
| ☺ | Which keyword is used to print the text in the screen? |
| ☺ | Why it is not advised to use innerHTML in JavaScript? |
| ☺ | Explain the concept of unobtrusive JavaScript? |
| ☺ | How are JavaScript and ECMA Script related? |
Top Scripting language Categories
| ☺ | AngularJS Interview Questions. |
| ☺ | Ext-JS Interview Questions. |
| ☺ | Dojo Interview Questions. |
| ☺ | Expert Developer JavaScript Interview Questions. |
| ☺ | jQuery Mobile Interview Questions. |
