OpenJS Node.js Application Developer (JSNAD)

The two-hour exam tests your skills from debugging Node.js to managing asynchronous operations to controlling processes. It tests knowledge and skills that an experienced Node.js application developer would be expected to possess. The exam is performance-based and includes items simulating on-the-job scenarios. JSNAD certification demonstrates the ability to perform tasks in real world-type environments, giving employers confidence that the certificant possesses a broad range of skills around JavaScript and related technologies. Passing a performance-based exam demonstrates the candidate's ability to perform challenging real world tasks under time constraints.
 

JSNAD certification is ideal for the Node.js developer with at least two years of experience working with Node.js. It is designed for anyone looking to demonstrate competence with Node.js to create applications of any kind, with a focus on knowledge of Node.js core API’s.
 

There are no pre-requisites for this exam.
 

• Buffer and Streams 11%

Node.js Buffer API’s Incremental Processing Transforming Data Connecting Streams

• Control flow 12 %

Managing asynchronous operations Control flow abstractions

• Child Processes 8%

Spawning or Executing child processes Child process configuration

• Diagnostics 6%

Debugging Node.js Basic performance analysis

• Error Handling 8%

Common patterns Handling errors in various scenarios

• Node.js CLI 4%

Node executable command line flags

• Events 11%

The event system Building event emitters Consuming event emitters

• File System 8%

Input/output Watching

• JavaScript Prerequisites 7%

Language fundamentals Scoped to core language features introduced since EcmaScript 1 and still heavily used today

• Module system 7%

CommonJS Module System only

• Process/Operating System 6%

Controlling the process Getting system data

• Package.json 6%

Package configuration Dependency management

• Unit Testing 6%

Using assertions Testing synchronous code Testing asynchronous code