npm install --save isdev
A simple little utility for checking if you are in a development environment.
The specification can be found in the mocha tests, but the gist is this:
NODE_ENV value:
- Development environment:
'dev''development'undefined
- Not Development
- everything else
To use:
var isDev = require('isdev')
if(isDev) {
console.log("In Development!")
} else {
console.log("Not in Development!")
}
On the off chance that you change your NODE_ENV mid-execution (READ: DO NOT DO THIS!), you need to clear the require cache for isDev since we cache the result:
process.env.NODE_ENV = 'dev'
var isDev = require('isDev')
process.env.NODE_ENV = 'production'
//isDev still thinks we are in dev here.
delete require.cache[require.resolve('isDev')]
isDev = require('isDev')
//isDev no longer thinks we are in dev