Enabled is a small utility that can check if certain namespace are enabled by environment variables which are automatically transformed to regular expressions for matching.
The module is release in the public npm registry and can be used in browsers and servers as it uses plain ol ES3 to make the magic work.
npm install --save enabled
First of all make sure you've required the module using:
'use strict';
var enabled = require('enabled');The returned enabled function accepts 2 arguments.
namestring, The namespace that should match.patternstring, The pattern that the name should satisfy
It will return a boolean indication of a match.
var flag = 'foo';
enabled('foo', flag); // true;
enabled('bar', flag); // false;
//
// Use * for wild cards.
//
var wildcard = 'foob*';
enabled('foobar', wildcard); // true;
enabled('barfoo', wildcard); // false;
//
// Use - to ignore.
//
var ignore = 'foobar,-shizzle,nizzle';
enabled('foobar', ignore); // true;
enabled('shizzle-my-nizzle', ignore); // false;
enabled('nizzle', ignore); // true;