env-is

Simple module to test if current NODE_ENV is or is not within a list of allowed environments

Usage

It is simple as:

// for env = development
var env = require('env-is');

console.log(env.is('production')); // true if NODE_ENV is production
console.log(env.is(['production', 'staging'])); // true if NODE_ENV is production or staging

console.log(env.isNot('production')); // true if NODE_ENV is NOT production
console.log(env.isNot(['production', 'staging'])); // true if NODE_ENV is NOT production or staging

The return value of env.is will change depending on the value of NODE_ENV

NODE_ENV=production node app

Will return:

console.log(env.is('production')); //true
console.log(env.is(['production', 'staging'])); //true

console.log(env.isNot('production')); //false
console.log(env.isNot(['production', 'staging'])); //false

And

NODE_ENV=staging node app

Will return:

console.log(env.is('production')); //false
console.log(env.is(['production', 'staging'])); //true

console.log(env.isNot('production')); //true
console.log(env.isNot(['production', 'staging'])); //false

And...

NODE_ENV=development node app

Will return

console.log(env.is('production')); //false
console.log(env.is(['production', 'staging'])); //false

console.log(env.isNot('production')); //true
console.log(env.isNot(['production', 'staging'])); //true