正在等待的安吉斯事件
原文：await Angular s EventEmitter

Is it possible to await till Angular EventEmitter emits, like it s possible to await ajax call (Angular 5 synchronous HTTP call)? What I want to do is: Having a Child component @Component({ ...

你们将如何根据一种制造的血管体形成一种微粒的电流? RUSS CANVAS JS
原文：How would you create a particle SURFACE emitter based on a created canvas shape? HTMLS CANVAS JS

我有一个图形(四分之一圈子),我是利用html信封功能创建的: