Node JS - Node js - REPL Features - Node - Node JS tutorial - webnode




What is REPL features?

  • REPL stands for Read Eval Print Loop and it represents a computer environment like a Windows console or Unix/Linux shell where a command is entered and the system responds with an output in an interactive mode. Node.js or Node comes bundled with a REPL environment.

Press Ctrl+C :

  • Terminates the current command’s execution.

Press Ctrl + C two times :

  • Returns back the control from REPL to the normal command prompt.

Press Ctrl+D :

  • Exit the REPL window.

Pressing up and down arrow keys :

  • Helps to navigate across command history and choose previous commands. This enables to avoid typing the commands again and again.

Press tab key :

  • If you type a single character and then followed by tab it will Displays a list of current commands, functions, and variables starting with that specific character as shown below:
 nodejs command window

Learn Nodejs - Nodejs tutorial - nodejs command window - Nodejs examples - Nodejs programs

  1. The REPL can handle multiline expression such as (1 + 2) * (3 + 4)The REPL provides a special variable _ (underscore) to fetch the result of the last expression as shown below:
 nodejs repl expressions

Learn Nodejs - Nodejs tutorial - nodejs repl expressions - Nodejs examples - Nodejs programs

  1. Addition operation is happening and the result is given on giving x+y and press enter keyword. The result is displayed as 12.
  2. Now enter underscore ( _ ) and press enter key, it shows the previous manipulated result, that is 12.

Related Searches to node.js - REPL Features

Adblocker detected! Please consider reading this notice.

We've detected that you are using AdBlock Plus or some other adblocking software which is preventing the page from fully loading.

We don't have any banner, Flash, animation, obnoxious sound, or popup ad. We do not implement these annoying types of ads!

We need money to operate the site, and almost all of it comes from our online advertising.

Please add wikitechy.com to your ad blocking whitelist or disable your adblocking software.

×