#JavaScript #react 🤔 https://immerjs.github.io/immer/docs/example-setstate

https://github.com/FirefoxBar/HeaderEditor/blob/master/src/background.js HeaderEditor 的 response body 修改 #Learn #JavaScript

解码用到了新的 ArrayBuffer / TypedArray API

browser.runtime.onMessage.addListener(function(request, sender, sendResponse)
传统的 Message 化控制流扩展

if (browser.contextMenus != undefined)
browser.contextMenus.onClicked.addListener((info, tab) => {

WebExtensions ContextMenus API

browser.browserAction.setIcon({ path: "" })
常见的 BrowserAction

_textEncode(encoding, text) {
let encoder = this._textEncoder.get(encoding); //cache
if (!encoder) {
// UTF-8使用原生API，性能更好
if (encoding === "UTF-8" && window.TextEncoder) {
encoder = new window.TextEncoder();
} else {
encoder = new TextEncoder(encoding, { NONSTANDARD_allowLegacyEncoding: true });
}
this._textEncoder.set(encoding, encoder);
}
// 防止解码失败导致整体错误
try {
return encoder.encode(text);
} catch (e) {
console.log(e);
return new Uint8Array();
}
}
还有许多不能直接发上来了，只有简化版，待会还有一个 time limited cache，看看。