Answer1215

摘要： Command Line 1. Navigate to your home directory cd ~ 2. Make a directory call "temp" mkdir temp 3. Move into temp cd temp 4. List the idrectory conten 阅读全文

摘要： DOM (Documnet Object Model) Tree: When a web page is loaded, the browser reads the HTML and builds the DOM tree. The DOM is a tree-like structure that 阅读全文

摘要： normal script, without async defer: Script fetched and executed immediately, before browser continues parsing the page (It stops HTML parsing). If the 阅读全文

摘要： button.addEventListener( 'click', (event) => { console.log('listener 1') queueMicrotask(() => { console.log('microtask') }) } ) button.addEventListene 阅读全文

摘要： You can use getEventListeners(button)directly inside chrome devtool, but not inside application code. You can use monitorEvents(button, 'keydown'), no 阅读全文

摘要： For example you have two containers running Container A: need to talk to Container B Container B, running a node application export port 1337 From con 阅读全文

摘要： Three rules: There can only be one value owner There can be unlimited immutable borrows (reference) with no mutable references There can be only one m 阅读全文

摘要： Difference between yieldand return returnset doneto true /** * Example 1 */ function* loggerator() { console.log("running"); yield "paused"; console.l 阅读全文

摘要： On mobile device, when you open / close the keyboard, zoom in / out, it might affect the visual viewport view (the actual page content); to detect cha 阅读全文

摘要： React set the ref to null in runtime. It is a limitation now for react. import { useRef } from 'react'; export const Component = () => { const ref = u 阅读全文