devxlogo

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"; 

Charlie has over a decade of experience in website administration and technology management. As the site admin, he oversees all technical aspects of running a high-traffic online platform, ensuring optimal performance, security, and user experience.

See also  Seven Service Boundary Mistakes That Create Technical Debt

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.