Evalutes a CLI parameter expression and exits with exit codes based on the boolean outcome of that expression.

Usage no npm install needed!

<script type="module">
  import exprExitCode from 'https://cdn.skypack.dev/expr-exit-code';



Really simple npm CLI module for evaluating CLI parameters and exit a process based on the expressions output (all truthy values = exit code 0, else is exit code 1).


$ npm install
$ npm dedupe // if npm < 3
$ npm run build


Replace expr-exit-code with node dist/index.js if in development.

$ npm install -g expr-exit-code

// 5>6 is false, exit code 1:
$ expr-exit-code -e "5>6"

// 0 is falsy, exit code 1:
$ expr-exit-code -e "1-1"

// message if expression is truthy:
$ expr-exit-code -e "1+1" -t "It is truthy"

// message if expression is falsy:
$ expr-exit-code -e "0+0" -t "It is falsy"