An warware: react-dom

React-DOM wani muhimmin bangare ne na yanayin yanayin React, kamar yadda manne ne ke haɗa abubuwan siffanta React zuwa ainihin DOM a cikin burauzar gidan yanar gizo ko wani dandamali kamar React Native. Za mu zurfafa zurfi cikin fahimtar React-DOM mafi kyau da kuma yadda yake taimakawa sauƙaƙe aiki mai sauƙi na aikace-aikacen React.

Laburaren React-DOM yana ba da takamaiman hanyoyin DOM waɗanda za a iya amfani da su a saman matakin aikace-aikacen React don ba da damar ingantacciyar hanyar sarrafa sabuntawa ga DOM. Wannan yana haɓaka ƙarfin aikace-aikacen da lokacin amsawa, yana mai da shi mafi kyawun mai amfani.

import React from 'react';
import ReactDOM from 'react-dom';

function App() {
  return (
    <h1>Hello, world!</h1>
  );
}

ReactDOM.render(
  <App />,
  document.getElementById('root')
);

Snippet na sama na code yana nuna aikace-aikacen Sannu Duniya ta amfani da React-DOM, inda hanyar ReactDOM.render ke ɗaukar mahawara guda biyu - ɓangaren amsa don sabunta DOM tare da akwati don ɗaukakawa.

Hanyoyin React-DOM

React-DOM da farko yana ba da hanyoyi biyu; sa kuma cireComponentAtNode.

• ReactDOM.render(): Wannan ita ce hanyar da aka fi amfani da ita ta hanyar ɗakin karatu na React-DOM. Yana mayar da kashi na React a cikin kullin DOM da aka tanadar a cikin mai binciken kuma ya dawo da batun sashin da aka yi ko kuma ya dawo da ɓarna don abubuwan da ba su da ƙasa.

ReactDOM.render(element, container[, callback])

• ReactDOM.unmountComponentAtNode(): Wannan hanyar tana cire abin da aka ɗora na React daga DOM kuma yana tsaftace masu gudanar da taronsa da jihar.

ReactDOM.unmountComponentAtNode(container)

Virtual DOM a cikin React

Ɗaya daga cikin mahimman ra'ayoyin da ke bayan React shine amfani da Virtual DOM. Ainihin kwafin nauyi ne na ainihin DOM da aka adana a ƙwaƙwalwar ajiya. React-DOM shine ɗakin karatu wanda ke kwatanta Virtual DOM na yanzu tare da sigar gaba kuma yana haifar da jerin canje-canjen da za a yi amfani da su a ainihin DOM, tsarin da aka sani da "diffing". Bayan yin rarrabuwar kawuna, React yana ba da waɗannan canje-canje kuma yana amfani da su zuwa ainihin DOM don ingantaccen aiki, tsarin da aka sani da “slsuwa.”

Fahimtar da aiki yadda ya kamata tare da React-DOM yana buƙatar sanin gabaɗayan gine-ginen React. Don haɓaka ƙarfin React da gaske, masu haɓakawa suna buƙatar sanin muhimmiyar rawar da React-DOM ke takawa wajen haɗa yanayin React tare da ingantaccen gabatarwar gidan yanar gizo. A zahiri, ainihin React na iya kwance a cikin abubuwan haɗin gwiwa da kwararar bayanai ta hanya ɗaya, amma ainihin sihirin yana faruwa godiya ga ɗakin karatu na React-DOM.