build.js

/* eslint-disable no-undef */
const fs = require('fs-extra');
const childProcess = require('child_process');

/**
 * @ignore
 */
try {
	// Remove current build
	fs.removeSync('./dist/');
	// Transpile the typescript files
	const proc = childProcess.exec('tsc --build tsconfig.prod.json');
	proc.on('close', (code) => {
		if (code !== 0) {
			throw Error('Build failed');
		}
	});
} catch (err) {
	console.log(err);
}