easycalc

easycalc is a primitive calculator written in typescript.

usage

$ npm i -g easycalc

$ easycalc [FILE]

When file argument is present, easycalc reads and executes all lines from this file and outputs the final answer.

Otherwise, REPL is started.

You can do 2 things in REPL:

• calculate things
• write them into variables

2 additional variables are present:

• _ is a result of last computation
• __precision__ is precision of calculation.

> 5 + 7
12
> -(42 + 58)
-100
> 2 * 1/2
1
> __precision__ = 3
3
> third = 1/3
0.333
> a = 2 + 2 * 2
6
> 3 * third
0.999
> _
0.999
> __vars__
__precision__: 3
third: 0.333
a: 6
>

there also is a __vars__ command (in REPL), that outputs the list of existing variables.

test

$ npm run test