\ub9ac\uc561\ud2b8(React)\ub294 \ud604\uc7ac \uac00\uc7a5 \uc778\uae30 \uc788\ub294 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \ub77c\uc774\ube0c\ub7ec\ub9ac \uc911 \ud558\ub098\ub85c, \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4(UI)\ub97c \uad6c\ucd95\ud558\uae30 \uc704\ud55c \ud6a8\uc728\uc801\uc774\uace0 \uc720\uc5f0\ud55c \ubc29\ubc95\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774 \uac15\uc88c\uc5d0\uc11c\ub294 \ub9ac\uc561\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4dc\ub294 \uacfc\uc815\uc744 \ub2e8\uacc4\ubcc4\ub85c \uc548\ub0b4\ud569\ub2c8\ub2e4. \uc5ec\ub7ec\ubd84\uc774 \uc774 \uac15\uc88c\ub97c \uc644\uc8fc\ud558\uba74, \ub9ac\uc561\ud2b8\uc758 \uae30\ubcf8 \uac1c\ub150\uc744 \uc774\ud574\ud558\uace0, \uc2e4\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uad6c\ucd95\ud560 \uc218 \uc788\ub294 \ub2a5\ub825\uc744 \uac16\ucd94\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n
\ub9ac\uc561\ud2b8\ub294 \ud398\uc774\uc2a4\ubd81\uc5d0 \uc758\ud574 \uac1c\ubc1c\ub41c \uc624\ud508 \uc18c\uc2a4 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc785\ub2c8\ub2e4. \uc8fc\ub85c \ub2e8\uc77c \ud398\uc774\uc9c0 \uc560\ud50c\ub9ac\ucf00\uc774\uc158(SPA)\uc744 \ub9cc\ub4e4\uae30 \uc704\ud55c \ubaa9\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub9ac\uc561\ud2b8\ub294 \ucef4\ud3ec\ub10c\ud2b8 \uae30\ubc18 \uad6c\uc870\ub97c \uc81c\uacf5\ud558\uc5ec \ucf54\ub4dc \uc7ac\uc0ac\uc6a9\uc131\uc744 \ub192\uc774\uace0, \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc720\uc9c0\ubcf4\uc218\ub97c \uc6a9\uc774\ud558\uac8c \ud569\ub2c8\ub2e4. \ub610\ud55c, \uac00\uc0c1 DOM\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\ub9ac\uc561\ud2b8\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 \uac1c\ubc1c \ud658\uacbd\uc744 \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc740 \uacfc\uc815\uc73c\ub85c \uc124\uce58\ub97c \uc9c4\ud589\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\ub9ac\uc561\ud2b8\ub294 Node.js \ud658\uacbd\uc5d0\uc11c \uc2e4\ud589\ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c, \uba3c\uc800 Node.js\uc640 npm(\ub178\ub4dc \ud328\ud0a4\uc9c0 \ub9e4\ub2c8\uc800)\uc744 \uc124\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. Node.js\ub294 \uacf5\uc2dd \uc6f9\uc0ac\uc774\ud2b8<\/a>\uc5d0\uc11c \ub2e4\uc6b4\ub85c\ub4dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc774\uc81c \ub9ac\uc561\ud2b8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc27d\uac8c \uc0dd\uc131\ud560 \uc218 \uc788\ub294 Create React App\uc744 \uc0ac\uc6a9\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc544\ub798\uc758 \uba85\ub839\uc5b4\ub97c \ud130\ubbf8\ub110\uc5d0 \uc785\ub825\ud558\uc5ec \uc0c8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud558\uc138\uc694:<\/p>\n \uc704 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uba74 “my-app”\uc774\ub77c\ub294 \uc774\ub984\uc758 \uc0c8\ub85c\uc6b4 \ub9ac\uc561\ud2b8 \ud504\ub85c\uc81d\ud2b8 \ud3f4\ub354\uac00 \uc0dd\uc131\ub429\ub2c8\ub2e4. \uc0dd\uc131\uc774 \uc644\ub8cc\ub418\uba74, \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud504\ub85c\uc81d\ud2b8 \ud3f4\ub354\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n \uc774\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc2e4\ud589\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc544\ub798\uc758 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uc138\uc694:<\/p>\n \ube0c\ub77c\uc6b0\uc800\uac00 \uc790\ub3d9\uc73c\ub85c \uc5f4\ub9ac\uace0 http:\/\/localhost:3000<\/strong>\uc5d0\uc11c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \ub9ac\uc561\ud2b8\ub97c \uc774\ud574\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba87 \uac00\uc9c0 \uae30\ubcf8 \uac1c\ub150\uc744 \uc219\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n \ucef4\ud3ec\ub10c\ud2b8\ub294 \ub9ac\uc561\ud2b8 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uae30\ubcf8 \ube4c\ub529 \ube14\ub85d\uc785\ub2c8\ub2e4. \uac01\uac01\uc758 \ucef4\ud3ec\ub10c\ud2b8\ub294 HTML, CSS, \uadf8\ub9ac\uace0 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\ub97c \ud3ec\ud568\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uae30\ubcf8\uc801\uc778 \ud568\uc218\ud615 \ucef4\ud3ec\ub10c\ud2b8\uc758 \uc608\uc785\ub2c8\ub2e4:<\/p>\n \ub9ac\uc561\ud2b8\uc5d0\uc11c \uc0c1\ud0dc(state)\ub294 \ucef4\ud3ec\ub10c\ud2b8\uc758 \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc0c1\ud0dc\uac00 \ubcc0\uacbd\ub420 \ub54c\ub9c8\ub2e4 \ub9ac\uc561\ud2b8\ub294 \ud574\ub2f9 \ucef4\ud3ec\ub10c\ud2b8\ub97c \ub2e4\uc2dc \ub80c\ub354\ub9c1\ud569\ub2c8\ub2e4.<\/p>\n \uc0c1\ud0dc\ub97c \uc815\uc758\ud558\uace0 \uc5c5\ub370\uc774\ud2b8\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n Props\ub294 \ucef4\ud3ec\ub10c\ud2b8 \uac04 \ub370\uc774\ud130 \uc804\ub2ec\uc744 \uc704\ud55c \ubc29\ubc95\uc785\ub2c8\ub2e4. \ubd80\ubaa8 \ucef4\ud3ec\ub10c\ud2b8\uc5d0\uc11c \uc790\uc2dd \ucef4\ud3ec\ub10c\ud2b8\ub85c \uc815\ubcf4\ub97c \uc804\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc774\uc81c \ubcf8\uaca9\uc801\uc73c\ub85c \ub9ac\uc561\ud2b8 \uc571\uc744 \ub9cc\ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774\ubc88 \ud504\ub85c\uc81d\ud2b8\ub294 \uac04\ub2e8\ud55c \ud560 \uc77c \ubaa9\ub85d(To-Do List) \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4dc\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n \uba3c\uc800, \ud544\uc694\ud55c \ucef4\ud3ec\ub10c\ud2b8\ub97c \uc815\uc758\ud574\ubd05\uc2dc\ub2e4. \uc6b0\ub9ac\uc758 \ud504\ub85c\uc81d\ud2b8\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uad6c\uc870\ub97c \uac00\uc9d1\ub2c8\ub2e4:<\/p>\n Todo.js \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0, \uac01 \ud560 \uc77c\uc744 \ud45c\uc2dc\ud558\ub294 \ucef4\ud3ec\ub10c\ud2b8\ub97c \uc815\uc758\ud569\ub2c8\ub2e4.<\/p>\n TodoList.js \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0, \uc5ec\ub7ec Todo \ucef4\ud3ec\ub10c\ud2b8\ub97c \ud45c\uc2dc\ud558\ub294 \ub9ac\uc2a4\ud2b8\ub97c \ub9cc\ub4e4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n App.js \ud30c\uc77c\uc5d0 \uc0c1\ud0dc\ub97c \uad00\ub9ac\ud558\uace0, TodoList\ub97c \ub80c\ub354\ub9c1\ud558\ub294 \ub85c\uc9c1\uc744 \ucd94\uac00\ud569\uc2dc\ub2e4.<\/p>\n \uc704\uc758 \ucf54\ub4dc\ub97c \uc791\uc131\ud55c \ud6c4, \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub2e4\uc2dc \uc2e4\ud589\ud558\uba74 \ud560 \uc77c \ubaa9\ub85d\uc774 \ud45c\uc2dc\ub418\uba70, \uac01 \ud56d\ubaa9\uc744 \ud074\ub9ad\ud558\uc5ec \uc644\ub8cc \uc0c1\ud0dc\ub97c \ud1a0\uae00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ucd5c\uc801\ud654\ud558\ub294 \uac83\uc740 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc131\ub2a5\uc744 \ub192\uc774\ub294 \uc911\uc694\ud55c \uc791\uc5c5\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub9ac\uc561\ud2b8 \uc571\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \ubc29\ubc95\uc785\ub2c8\ub2e4:<\/p>\n \ub9ac\uc561\ud2b8 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc5ec\ub7ec \ud398\uc774\uc9c0\ub97c \uad6c\ud604\ud558\uae30 \uc704\ud574\uc11c\ub294 \ub9ac\uc561\ud2b8 \ub77c\uc6b0\ud130\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9ac\uc561\ud2b8 \ub77c\uc6b0\ud130\ub97c \uc124\uce58\ud558\uace0 \uae30\ubcf8\uc801\uc778 \ub77c\uc6b0\ud305\uc744 \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n App.js \ud30c\uc77c \uc218\uc815\ud558\uc5ec \ub77c\uc6b0\ud305\uc744 \uc124\uc815\ud569\ub2c8\ub2e4.<\/p>\n \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ub9ac\uc561\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c \ud560 \uc77c \ubaa9\ub85d \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \ubc30\uc6e0\uc2b5\ub2c8\ub2e4. \ub9ac\uc561\ud2b8\uc758 \uae30\ubcf8 \uac1c\ub150, \ucef4\ud3ec\ub10c\ud2b8 \uc0dd\uc131, \uc0c1\ud0dc \uad00\ub9ac \ubc0f \ub77c\uc6b0\ud305\uc744 \uc124\uc815\ud558\ub294 \uacfc\uc815\uc744 \ud1b5\ud574 \ub9ac\uc561\ud2b8\uc758 \ub9e4\ub825\uc744 \ub290\uaef4\ubcf4\uc558\uc744 \uac83\uc785\ub2c8\ub2e4. \ub9ac\uc561\ud2b8\ub294 \uac15\ub825\ud558\uace0 \uc720\uc5f0\ud55c \ub77c\uc774\ube0c\ub7ec\ub9ac\uc774\ubbc0\ub85c, \ub2e4\uc591\ud55c \ud504\ub85c\uc81d\ud2b8\uc5d0 \ud65c\uc6a9 \uac00\ub2a5\uc131\uc774 limitless\ud569\ub2c8\ub2e4. \uc55e\uc73c\ub85c \ub354 \ub9ce\uc740 \ud504\ub85c\uc81d\ud2b8\ub97c \ud1b5\ud574 \uc5ec\ub7ec\ubd84\uc758 \ub9ac\uc561\ud2b8 \uc2e4\ub825\uc744 \ud0a4\uc6cc\ub098\uac00\uae38 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n \ud574\ub2f9 \uac15\uc88c\uc5d0\uc11c \uc5b8\uae09\ud55c \uac1c\ub150\ub4e4\uc5d0 \ub300\ud574 \ub354 \uae4a\uc774 \uacf5\ubd80\ud560 \uc218 \uc788\ub294 \uc790\ub8cc\ub97c \uc81c\uacf5\ud558\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n \uac10\uc0ac\ud569\ub2c8\ub2e4. \uc5ec\ub7ec\ubd84\uc758 \ub9ac\uc561\ud2b8 \ud559\uc2b5\uc774 \uc990\uac81\uace0 \uc720\uc775\ud558\uae38 \ubc14\ub78d\ub2c8\ub2e4!<\/p>\n","protected":false},"excerpt":{"rendered":"3.2 Create React App\uc73c\ub85c \uc0c8 \ud504\ub85c\uc81d\ud2b8 \ub9cc\ub4e4\uae30<\/h3>\n
npx create-react-app my-app<\/code><\/pre>\ncd my-app<\/code><\/pre>\n3.3 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc2e4\ud589\ud558\uae30<\/h3>\n
npm start<\/code><\/pre>\n4. \ub9ac\uc561\ud2b8 \uae30\ubcf8 \uac1c\ub150<\/h2>\n
4.1 \ucef4\ud3ec\ub10c\ud2b8<\/h3>\n
function Welcome() {\n return <h1>Hello, World!<\/h1>;\n}<\/code><\/pre>\n4.2 \uc0c1\ud0dc \uad00\ub9ac<\/h3>\n
import React, { useState } from 'react';\n\nfunction Counter() {\n const [count, setCount] = useState(0);\n\n return (\n <div>\n <p>Clicked {count} times<\/p>\n <button onClick={() => setCount(count + 1)}>Click me<\/button>\n <\/div>\n );\n}<\/code><\/pre>\n4.3 Props<\/h3>\n
function Greeting(props) {\n return <h1>Hello, {props.name}!<\/h1>;\n}\n\nfunction App() {\n return <Greeting name=\"Alice\" \/>;\n}<\/code><\/pre>\n5. \ub9ac\uc561\ud2b8 \uc571 \ub9cc\ub4e4\uae30<\/h2>\n
5.1 \ud504\ub85c\uc81d\ud2b8 \uad6c\uc870<\/h3>\n
\n
\n
\n
5.2 Todo \ucef4\ud3ec\ub10c\ud2b8 \uc0dd\uc131\ud558\uae30<\/h3>\n
import React from 'react';\n\nfunction Todo({ todo, onToggle }) {\n return (\n <div onClick={onToggle}>\n <span style={{ textDecoration: todo.completed ? 'line-through' : 'none' }}>\n {todo.text}\n <\/span>\n <\/div>\n );\n}\n\nexport default Todo;<\/code><\/pre>\n5.3 TodoList \ucef4\ud3ec\ub10c\ud2b8 \uc0dd\uc131\ud558\uae30<\/h3>\n
import React from 'react';\nimport Todo from '.\/Todo';\n\nfunction TodoList({ todos, onToggle }) {\n return (\n <div>\n {todos.map(todo => (\n <Todo key={todo.id} todo={todo} onToggle={() => onToggle(todo.id)} \/>\n ))}\n <\/div>\n );\n}\n\nexport default TodoList;<\/code><\/pre>\n5.4 App \ucef4\ud3ec\ub10c\ud2b8 \uc5c5\ub370\uc774\ud2b8\ud558\uae30<\/h3>\n
import React, { useState } from 'react';\nimport TodoList from '.\/components\/TodoList';\n\nfunction App() {\n const [todos, setTodos] = useState([\n { id: 1, text: '\ub9ac\uc561\ud2b8 \ubc30\uc6b0\uae30', completed: false },\n { id: 2, text: '\ud504\ub860\ud2b8\uc5d4\ub4dc \uac1c\ubc1c \uc5f0\uc2b5\ud558\uae30', completed: false },\n ]);\n\n const toggleTodo = (id) => {\n const updatedTodos = todos.map(todo =>\n todo.id === id ? { ...todo, completed: !todo.completed } : todo\n );\n setTodos(updatedTodos);\n };\n\n return <TodoList todos={todos} onToggle={toggleTodo} \/>;\n}\n\nexport default App;<\/code><\/pre>\n5.5 \ucd5c\uc885\uc801\uc73c\ub85c \uc571 \uc2e4\ud589\ud558\uae30<\/h3>\n
6. \ub9ac\uc561\ud2b8 \uc571 \ucd5c\uc801\ud654<\/h2>\n
\n
7. \ub9ac\uc561\ud2b8 \ub77c\uc6b0\ud130 \uc0ac\uc6a9\ud558\uae30<\/h2>\n
npm install react-router-dom<\/code><\/pre>\n7.1 \uae30\ubcf8 \ub77c\uc6b0\ud305 \uc124\uc815\ud558\uae30<\/h3>\n
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';\n\n\/\/ \ub2e4\ub978 \ucef4\ud3ec\ub10c\ud2b8 \uc784\ud3ec\ud2b8\nimport Home from '.\/components\/Home';\nimport About from '.\/components\/About';\n\nfunction App() {\n return (\n <Router>\n <Switch>\n <Route path=\"\/\" exact component={Home} \/>\n <Route path=\"\/about\" component={About} \/>\n <\/Switch>\n <\/Router>\n );\n}<\/code><\/pre>\n8. \uacb0\ub860<\/h2>\n
\ubd80\ub85d: \ucd94\uac00 \uc790\ub8cc<\/h2>\n
\n