node.js - 从 Node 事件处理程序中调用函数

Question

我正在使用 icpRenderer 将 Electron 应用程序中的消息从渲染器发送到主进程。下面是监听消息的处理程序。我想从该处理程序中调用另一个函数。我该如何绑定(bind)这个？

const onMessageReceived = (m: string) => {
  console.log(m);
};

ipcMain.on('my-custom-signal', (event, arg) => {
  this.onMessageReceived(arg);// how can I call this?
}); 

Answer 1

this处理程序内部不一样。

你可以这样做:

let that = this;
const onMessageReceived = (m: string) => {
  console.log(m);
};

ipcMain.on('my-custom-signal', (event, arg) => {
  that.onMessageReceived(arg); // how can I call this?
});