dcsimg
Login | Register   
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: JavaScript
Expertise: Beginner
Feb 3, 2009

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Handle Null in JavaScript with the "||" Operator

The "||" Operator can be used to handle nulls in variables or to handle an undefined variable itself. This operator, along with coalescing, can also be used to set default values to variables.

Instead of using the ternary operator to handle a null value and set the default values, you can use the "||" operator.

Using the ternary operator:


-------------------------
var employeeName = (employee.Name != null ? employee.Name : "Unknown"); 
Using the "||" Operator:

-------------------------
var employeeName = employee.Name || "Unknown"; 
Srinath MS
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
×
We have made updates to our Privacy Policy to reflect the implementation of the General Data Protection Regulation.
Thanks for your registration, follow us on our social networks to keep up-to-date