What are LTS versions of Node.js?
When a new odd version is released, the previous even version undergoes transition to Long Term Support (LTS), which gives that version 18 months of active support from the date it is designated LTS. After these 18 months expire, an LTS release receives an additional 12 months of maintenance support.
Aspire – Selenium Interview Questions
Here is the list of Selenium Interview Questions which are recently asked in Aspire company. These questions are included for both Freshers and Experienced professionals. Our Selenium Training has Answered all the below Questions.
1 Where to keep your script files?
BehavioWhere you put your script depends on who the intended user is. If it is just you, put it in ~/bin and make sure ~/bin is in your PATH. If any user on the system should be able to run the script, put it in /usr/local/bin.r Driven Development approach used to selenium.
What are the activities you are doing in your project?
Understanding the requirements of features to be automated and getting it in automation roadmap Monitor daily executed automation script result Raise defect or fix script based on failure analysis Understanding best practices in automation Identify code optimization area to make execution faster
Aspire Systems – Node JS Interview Questions
Here is the list of Node JS Interview Questions which are recently asked in Aspire Systems company. These questions are included for both Freshers and Experienced professionals. Our Node JS Training has Answered all the below Questions.
Describe the exit codes in Node.js.
Node will exit with a 0 status code when no more async operations are pending. Internal JavaScript Evaluation Failure – The JavaScript source code internal in Nodes bootstrapping process failed to return a function value when evaluated.
NODE_ENV specifically is used to state whether a particular environment is a production or a development environment. A common use-case is running additional debugging or logging code if running in a development environment.
Does Node.js provide a Debugger?
What is stub in Node.js?
Stubs can be wrapped into existing functions. When we wrap a stub into the existing function the original function is not called. Stubs are functions or programs that affect the behavior of components or modules. Stubs are dummy objects for testing. Stubs implement a pre-programmed response.
The event loop is what allows Node.js to perform non-blocking I/O operations despite the fact that JavaScript is single-threaded and by offloading operations to the system kernel whenever possible. Since most modern kernels are multi-threaded, they can handle multiple operations executing in the background
List and explain the timing features of Node.js.
The timer module in Node.js consists of functions that help to control the timings of code execution. The callback parameter holds the function that to be executed. The delay parameter holds the number of milliseconds to wait before calling the callback function. The args parameter holds the optional parameter.
1 Explain the concept of JIT and highlight its relation with Node.js.
JIT stands for Just-in-time which is a program which is used to send bytecode (it consists of instruction that can be interpreted) to the processor by converting it into instruction. Relation of JIT with Node is Virtual machine of Node.js has JIT compilation which improves the execution speed of the code.