npm follow convention for scripts hooks preX will run before script X postX will run after script X chalk is utility for coloring console output
var chalk = require("chalk");
console.log(chalk.green("Start app in dev mode..."));
"scripts": {
"prestart": "node buildScripts/startMessage.js",
"start": "node buildScripts/srcServer.js"
},
"devDependencies":{
"chalk": "1.1.3"
}