npm: debug

const debug = require('debug')

浏览器支持

localStorage.debug = 'worker:*'
a = debug('worker:a');
a('doing some work');

import debug from 'debug';
private imdebugger: debug.Debugger = null;
localStorage.debug = 'worker:*';
this.imdebugger = debug('worker:im');
this.imdebugger(mssage)