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Whenever I am coding, I often find myself every now and then in a REPL to test out some concepts before I go ahead and implement it. For Ruby on Rails development I use PRYand for python I use bpython. Wondering whether there is an equivalent for that in javascript. Basically testing out javascript code from the terminal
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The REPL is an interactive environment that allows you to execute JavaScript code without first having to write it to a file. You can use the REPL to try out JavaScript code from other tutorials: How To Define Functions in JavaScript.
Yes, you can run JavaScript in your terminal. Now, when you enter a command into your terminal, there are generally options, also called switches or flags, that you can use to modify how the command runs.
Even though I usually have a JavaScript-enabled browser open, I often find myself using the Node.js REPL.
Just run node in a command prompt, and it will open a REPL for you.
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You just need to use node.js :
$ node
> 1 + 1
> 2
>
Although, this won't work for usual browser element (window, document) and DOM. If you want a browser environnement, checkout Phantomjs REPL and Casperjs - although I'm not sure about their capacity.
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