Typescript compile and browserify ( tsc -w & watchify )

browserify

var spawn = require('child_process').spawn;
var compile = spawn('./node_modules/.bin/tsc',['-w']);
    compile.stdout.on('data', function (data) {
    console.log('stdout: ' + data.toString());
});
    compile.stderr.on('data', function (data) {
        console.log('stderr: ' + data.toString());
    });
    compile.on('exit', function (code) {
    console.log('child process exited with code ' + code.toString());
});
setTimeout(function () {
    var browserify =  spawn('./node_modules/.bin/watchify',['./out/index.js','-o','./public/js/bundle.js','-v']);
    browserify.stdout.on('data', function (data) {
        console.log('stdout: ' + data.toString());
    });
    browserify.stderr.on('data', function (data) {
        console.log('stderr: ' + data.toString());
    });
    browserify.on('exit', function (code) {
        console.log('child process exited with code ' + code.toString());
    });
},2000);