MessageEvent: source プロパティ

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.

source は MessageEvent インターフェイスの読み取り専用プロパティで、メッセージ送信者を表す MessageEventSource （WindowProxy, MessagePort, ServiceWorker オブジェクトのいずれか）です。

値

メッセージ送信者を表す MessageEventSource （WindowProxy, MessagePort, ServiceWorker オブジェクトのいずれか）です。

js
myWorker.onmessage = (e) => {
  result.textContent = e.data;
  console.log("Message received from worker");
  console.log(e.source);
};

Specification

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This page was last modified on 2023年9月20日 by MDN contributors.