anthrax3 / pipejs

Command Line JavaScript interpreter

PipeJs

PipeJs is a JavaScript Command Line Interpreter for .NET. It means you can execute custom JavaScript from the command line, by passing JavaScript statements and script files as arguments.

Quick Start

PipeJs is used by calling pipejs.exe from the command line. Here are some typical ways to use it:

Returning a JavaScript primitive value

Any returned primitive value is displayed using .toString() on it.

pipejs return Math.PI * 2

6.28318530717959

Returning a JavaScript complex object

Complex objects are serialized into JSON.

pipejs var o = {}; o.Color = 'Red'; return o;

{"Color":"Red"}

Piping arguments to a script

Any value can be passed to pipejs as the this argument.

echo { "foo" : "bar" } | pipejs return this.foo;

bar

Outputing custom text to the console

The console object is available.

echo 9 | pipejs "if(this > 5) console.log(this); else console.warning(this);"

Using an external script file

PipeJs can execute a script from a specific file.

pipejs @myScript.js

Piping outputs to inputs

The output of a pipejs script can be used as the input of another one.

echo 9 | pipejs return this * 2 | pipejs return this - 10

8