{"id":39032,"date":"2024-11-02T02:36:28","date_gmt":"2024-11-02T02:36:28","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=39032"},"modified":"2024-11-26T06:42:36","modified_gmt":"2024-11-26T06:42:36","slug":"react%ec%99%80-typescript-%ec%82%ac%ec%9a%a9%ed%95%98%ea%b8%b0-props%ec%99%80-state%ec%97%90-%ed%83%80%ec%9e%85-%ec%a0%81%ec%9a%a9%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/39032\/","title":{"rendered":"React\uc640 TypeScript \uc0ac\uc6a9\ud558\uae30, Props\uc640 State\uc5d0 \ud0c0\uc785 \uc801\uc6a9\ud558\uae30"},"content":{"rendered":"<p>\ud604\ub300 \uc6f9 \uac1c\ubc1c\uc5d0\uc11c React\ub294 \ub9e4\uc6b0 \uc778\uae30 \uc788\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc774\uba70, TypeScript\ub294 \uc815\uc801 \ud0c0\uc774\ud551\uc774 \uac00\ub2a5\ud55c \uc5b8\uc5b4\ub85c\uc11c \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\uc758 \ub2e4\uc591\ud55c \ubb38\uc81c\uc810\uc744 \ubcf4\uc644\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 React\uc640 TypeScript\ub97c \ud568\uaed8 \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95, \ud2b9\ud788 Props\uc640 State\uc5d0 \ud0c0\uc785\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>1. TypeScript\ub780?<\/h2>\n<p><strong>TypeScript<\/strong>\ub294 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\ub97c \uae30\ubc18\uc73c\ub85c \ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub85c, \uc815\uc801 \ud0c0\uc774\ud551\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc774\ub294 \uc18c\uc2a4 \ucf54\ub4dc\ub97c \uc791\uc131\ud560 \ub54c \ubcc0\uc218\uc758 \uc720\ud615\uc744 \uba85\ud655\ud788 \uc815\uc758\ud560 \uc218 \uc788\uac8c \ud574\uc8fc\uba70, \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ub192\uc774\uace0 \ub514\ubc84\uae45\uc744 \uc6a9\uc774\ud558\uac8c \ub9cc\ub4ed\ub2c8\ub2e4.<\/p>\n<p>TypeScript\ub294 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\ub85c \ucef4\ud30c\uc77c\ub418\uba70, \uae30\uc874\uc758 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \ucf54\ub4dc\uc640 \ud638\ud658\ub429\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uac1c\ubc1c\uc790\ub4e4\uc740 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\uc758 \uc720\uc5f0\uc131\uacfc TypeScript\uc758 \uac15\ub825\ud55c \ud0c0\uc785 \uc2dc\uc2a4\ud15c\uc744 \ud568\uaed8 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>2. React\uc640 TypeScript\ub97c \ud568\uaed8 \uc0ac\uc6a9\ud558\uae30<\/h2>\n<p>React \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c TypeScript\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 TypeScript\uac00 \uc124\uce58\ub41c React \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud574\uc57c \ud569\ub2c8\ub2e4. \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec TypeScript \ud15c\ud50c\ub9bf\uc774 \ud3ec\ud568\ub41c \uc0c8\ub85c\uc6b4 React \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>npx create-react-app my-app --template typescript<\/code><\/pre>\n<p>\uc704 \uba85\ub839\uc5b4\ub97c \uc2e4\ud589\ud558\uba74 <code>my-app<\/code>\uc774\ub77c\ub294 \uc774\ub984\uc758 \ub514\ub809\ud1a0\ub9ac\uc5d0 TypeScript \uc124\uc815\uc774 \uc644\ub8cc\ub41c React \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc0dd\uc131\ub429\ub2c8\ub2e4.<\/p>\n<h2>3. Props\uc640 State \uc815\uc758\ud558\uae30<\/h2>\n<p>React \ucef4\ud3ec\ub10c\ud2b8\ub294 Props\uc640 State\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc0c1\ud0dc\uc640 \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud569\ub2c8\ub2e4. TypeScript\ub97c \uc0ac\uc6a9\ud558\uba74 \uc774\ub7ec\ud55c Props\uc640 State\uc758 \ud0c0\uc785\uc744 \uba85\ud655\ud558\uac8c \uc815\uc758\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>3.1 Props \uc815\uc758\ud558\uae30<\/h3>\n<p>Props\ub294 \ucef4\ud3ec\ub10c\ud2b8\uc5d0 \ub370\uc774\ud130\ub97c \uc804\ub2ec\ud574\uc8fc\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. TypeScript\ub97c \uc0ac\uc6a9\ud558\uc5ec Props\uc758 \ud0c0\uc785\uc744 \uc815\uc758\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>import React from 'react';\n\ninterface GreetingProps {\n    name: string;\n    age: number;\n}\n\nconst Greeting: React.FC<greetingprops> = ({ name, age }) =&gt; {\n    return <h1>\uc548\ub155\ud558\uc138\uc694, \uc81c \uc774\ub984\uc740 {name}\uc774\uace0, \ub098\uc774\ub294 {age}\uc138\uc785\ub2c8\ub2e4.<\/h1>;\n};\n\nexport default Greeting;<\/greetingprops><\/code><\/pre>\n<p>\uc704\uc758 \ucf54\ub4dc\uc5d0\uc11c <code>GreetingProps<\/code>\ub77c\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc815\uc758\ud558\uc5ec <code>name<\/code>\uacfc <code>age<\/code>\uc758 \ud0c0\uc785\uc744 \uc9c0\uc815\ud558\uc600\uc2b5\ub2c8\ub2e4. <code>React.FC<\/code>\ub294 \ud568\uc218\ud615 \ucef4\ud3ec\ub10c\ud2b8\uc758 \ud0c0\uc785\uc744 \uc758\ubbf8\ud558\uba70, \uac15\ub825\ud55c \ud0c0\uc785 \uc815\uc758\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<h3>3.2 State \uc815\uc758\ud558\uae30<\/h3>\n<p>State\ub294 \ucef4\ud3ec\ub10c\ud2b8\uac00 \uad00\ub9ac\ud558\ub294 \ub370\uc774\ud130\uc774\uba70, \uc0ac\uc6a9\uc790 \uc0c1\ud638\uc791\uc6a9 \ub4f1\uc5d0 \ub530\ub77c \ubcc0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. TypeScript\uc5d0\uc11c State\uc758 \ud0c0\uc785\uc744 \uc815\uc758\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>import React, { useState } from 'react';\n\ninterface CounterState {\n    count: number;\n}\n\nconst Counter: React.FC = () =&gt; {\n    const [state, setState] = useState<counterstate>({ count: 0 });\n\n    const increment = () =&gt; {\n        setState({ count: state.count + 1 });\n    };\n\n    return (\n        <div>\n            <h2>\ud604\uc7ac \uce74\uc6b4\ud2b8: {state.count}<\/h2>\n            <button onclick=\"{increment}\">\uc99d\uac00<\/button>\n        <\/div>\n    );\n};\n\nexport default Counter;<\/counterstate><\/code><\/pre>\n<p>\uc704\uc758 \uc608\uc81c\uc5d0\uc11c <code>CounterState<\/code> \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec <code>count<\/code>\uc758 \ud0c0\uc785\uc744 \uc815\uc758\ud588\uc2b5\ub2c8\ub2e4. <code>useState<\/code> \ud6c5\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc774 \ud0c0\uc785\uc744 \uc8fc\uc5b4 \uc548\uc804\ud558\uac8c \uc0c1\ud0dc\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>4. Props\uc640 State\uc5d0 \ud0c0\uc785 \uc801\uc6a9\ud558\uae30 \uc608\uc81c<\/h2>\n<p>\uc774\uc81c Props\uc640 State\uc5d0 \ud0c0\uc785\uc744 \uc801\uc6a9\ud558\ub294 \uc885\ud569\uc801\uc778 \uc608\uc81c\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ucef4\ud3ec\ub10c\ud2b8\ub294 \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc785\ub825\ubc1b\uace0, \ud574\ub2f9 \uc815\ubcf4\ub97c \ud654\uba74\uc5d0 \ud45c\uc2dc\ud558\ub294 \uae30\ub2a5\uc744 \ud569\ub2c8\ub2e4.<\/p>\n<pre><code>import React, { useState } from 'react';\n\n\/\/ \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc704\ud55c Props \uc778\ud130\ud398\uc774\uc2a4 \uc815\uc758\ninterface User {\n    name: string;\n    age: number;\n}\n\n\/\/ Props\uc758 \ud0c0\uc785 \uc815\uc758\ninterface UserFormProps {\n    onSubmit: (user: User) =&gt; void;\n}\n\n\/\/ \uc0ac\uc6a9\uc790 \uc815\ubcf4 \uc785\ub825 \ud3fc \ucef4\ud3ec\ub10c\ud2b8\nconst UserForm: React.FC<userformprops> = ({ onSubmit }) =&gt; {\n    const [name, setName] = useState<string>('');\n    const [age, setAge] = useState<number>(0);\n\n    const handleSubmit = (event: React.FormEvent) =&gt; {\n        event.preventDefault();\n        onSubmit({ name, age });\n    };\n\n    return (\n        <form onsubmit=\"{handleSubmit}\">\n            <div>\n                <label>\uc774\ub984:<\/label>\n                <input ==\"\" onchange=\"{(e)\" type=\"text\" value=\"{name}\"\/> setName(e.target.value)} \/&gt;\n            <\/div>\n            <div>\n                <label>\ub098\uc774:<\/label>\n                <input ==\"\" onchange=\"{(e)\" type=\"number\" value=\"{age}\"\/> setAge(Number(e.target.value))} \/&gt;\n            <\/div>\n            <button type=\"submit\">\uc81c\ucd9c<\/button>\n        <\/form>\n    );\n};\n\n\/\/ \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \ud45c\uc2dc\ud558\ub294 \ucef4\ud3ec\ub10c\ud2b8\nconst UserInfo: React.FC&lt;{ user: User }&gt; = ({ user }) =&gt; {\n    return <h2>\uc0ac\uc6a9\uc790 \uc815\ubcf4: {user.name}, {user.age}\uc138<\/h2>;\n};\n\n\/\/ \uba54\uc778 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ucef4\ud3ec\ub10c\ud2b8\nconst App: React.FC = () =&gt; {\n    const [user, setUser] = useState<user null=\"\" |=\"\">(null);\n\n    const handleUserSubmit = (newUser: User) =&gt; {\n        setUser(newUser);\n    };\n\n    return (\n        <div>\n            <h1>\uc0ac\uc6a9\uc790 \uc815\ubcf4 \uc785\ub825<\/h1>\n            <userform onsubmit=\"{handleUserSubmit}\"><\/userform>\n            {user &amp;&amp; <userinfo user=\"{user}\"><\/userinfo>}\n        <\/div>\n    );\n};\n\nexport default App;<\/user><\/number><\/string><\/userformprops><\/code><\/pre>\n<h3>\uc124\uba85<\/h3>\n<p>\uc704 \ucf54\ub4dc\ub294 \uc0ac\uc6a9\uc790\uac00 \uc774\ub984\uacfc \ub098\uc774\ub97c \uc785\ub825\ud560 \uc218 \uc788\ub294 \ud3fc\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\uc790\uac00 \uc815\ubcf4\ub97c \uc785\ub825\ud558\uace0 \uc81c\ucd9c\ud558\uba74, <code>handleUserSubmit<\/code> \ud568\uc218\uac00 \ud638\ucd9c\ub418\uc5b4 <code>user<\/code> \uc0c1\ud0dc\uac00 \uc5c5\ub370\uc774\ud2b8 \ub429\ub2c8\ub2e4. \uc774 \uc0c1\ud0dc\ub97c <code>UserInfo<\/code> \ucef4\ud3ec\ub10c\ud2b8\ub85c \uc804\ub2ec\ud558\uc5ec \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \ud654\uba74\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n<h2>5. TypeScript\ub97c \uc0ac\uc6a9\ud560 \ub54c \uc7a5\uc810<\/h2>\n<ul>\n<li><strong>\uc815\uc801 \ud0c0\uc774\ud551:<\/strong> \ucf54\ub4dc \uc791\uc131 \uc2dc \uc810\uac80\uc744 \ud1b5\ud574 \uc624\ub958\ub97c \uc0ac\uc804\uc5d0 \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>IDE \uc9c0\uc6d0:<\/strong> \ud6cc\ub96d\ud55c \uc790\ub3d9 \uc644\uc131\uacfc \ucf54\ub4dc \ud0d0\uc0c9 \uae30\ub2a5\uc73c\ub85c \uc0dd\uc0b0\uc131\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uac00\ub3c5\uc131:<\/strong> \uba85\ud655\ud55c \ud0c0\uc785 \uc815\uc758\ub97c \ud1b5\ud574 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\ud611\uc5c5:<\/strong> \ub2e4\uc218\uc758 \uac1c\ubc1c\uc790\uac00 \ucc38\uc5ec\ud558\ub294 \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \ud0c0\uc785 \uc815\ubcf4\uac00 \uc18c\ud1b5\uc744 \uc6d0\ud65c\ud558\uac8c \ub3c4\uc640\uc90d\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>6. TypeScript ESLint \uc124\uc815<\/h2>\n<p>TypeScript\ub97c \uc0ac\uc6a9\ud560 \ub54c ESLint \uc124\uc815\uc73c\ub85c \ucf54\ub4dc \ud488\uc9c8\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. TypeScript \uc804\uc6a9 ESLint\ub97c \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>npm install --save-dev eslint @typescript-eslint\/parser @typescript-eslint\/eslint-plugin<\/code><\/pre>\n<p>\uc124\uce58 \ud6c4 <code>.eslintrc.js<\/code> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0 \ub2e4\uc74c\uacfc \uac19\uc774 \uc124\uc815\ud569\ub2c8\ub2e4.<\/p>\n<pre><code>module.exports = {\n    parser: '@typescript-eslint\/parser',\n    extends: [\n        'plugin:react\/recommended',\n        'plugin:@typescript-eslint\/recommended',\n    ],\n    parserOptions: {\n        ecmaFeatures: {\n            jsx: true,\n        },\n        ecmaVersion: 2020,\n        sourceType: 'module',\n    },\n    settings: {\n        react: {\n            version: 'detect',\n        },\n    },\n    rules: {\n        \/\/ \ud544\uc694\uc5d0 \ub530\ub77c \uaddc\uce59 \ucd94\uac00\n    },\n};<\/code><\/pre>\n<h2>7. \uacb0\ub860<\/h2>\n<p>TypeScript\uc640 React\ub97c \uacb0\ud569\ud558\uc5ec \uac1c\ubc1c\ud558\uba74 \ub354 \uc548\uc804\ud558\uace0 \ud6a8\uc728\uc801\uc778 \ucf54\ub4dc\ub97c \uc791\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Props\uc640 State\uc5d0 \ud0c0\uc785\uc744 \uba85\ud655\ud788 \uc815\uc758\ud568\uc73c\ub85c\uc368 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ub192\uc774\uace0 \uc624\ub958\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 TypeScript\uc758 \uae30\ubcf8\uc801\uc778 \uc0ac\uc6a9\ubc95\uacfc React \ucef4\ud3ec\ub10c\ud2b8\uc5d0\uc11c Props\uc640 State\uc5d0 \ud0c0\uc785\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n<p>React\uc640 TypeScript\ub97c \ud568\uaed8 \uc0ac\uc6a9\ud558\ub294 \uac83\uc740 \uc800\ub9c8\ub2e4\uc758 \uc7a5\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc870\ud569\uc744 \ud1b5\ud574 \ubcf4\ub2e4 \ubbf8\ub798 \uc9c0\ud5a5\uc801\uc778 \ud504\ub85c\uc81d\ud2b8\ub97c \ub9cc\ub4e4\uc5b4\ubcf4\uc138\uc694!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud604\ub300 \uc6f9 \uac1c\ubc1c\uc5d0\uc11c React\ub294 \ub9e4\uc6b0 \uc778\uae30 \uc788\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc774\uba70, TypeScript\ub294 \uc815\uc801 \ud0c0\uc774\ud551\uc774 \uac00\ub2a5\ud55c \uc5b8\uc5b4\ub85c\uc11c \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\uc758 \ub2e4\uc591\ud55c \ubb38\uc81c\uc810\uc744 \ubcf4\uc644\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 React\uc640 TypeScript\ub97c \ud568\uaed8 \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95, \ud2b9\ud788 Props\uc640 State\uc5d0 \ud0c0\uc785\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. 1. TypeScript\ub780? 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