webpack
// 引入一个包
const path = require('path');
// 自动构建html文件
const HTMLWebpackPlugin = require('html-webpack-plugin')
module.exports = {
// 入口文件
entry: '/src/index.ts',
// 指定打包文件所在目录
output: {
// 指定目录
path: path.resolve(__dirname, 'dist'),
// 打包后的文件名称
filename: 'bundle.js'
},
//指定webpack打包时要是用的模块
module: {
// 指定要加在的规则
rules: [
{
// test指定规则生效的文件
test: /\.ts/,
// 要使用的loader
use: 'ts-loader',
// 要排除的文件
exclude: /node_modules/
}
]
},
// 配置webpack插件
plugins: [
new HTMLWebpackPlugin(),
],
// 设置项目运行环境
mode: 'development'
};
typescript
初始化 typescript
- tsc --init 命令行生成 tsconfig.json 文件
// tsconfig.json
{
/*
tsconfig.json 是ts编译器的配置文件,ts编译器可以根据它的信息对代码进行编译
"include" 指定需要编译的文件
"exclude" 指定不需要变异的文件
*/
"include": [
"./src/**/*" // **所有目录 *所有文件
],
// "exclude": [
// "./src/hello/**/*"
// ]
"compilerOptions": {
/* Visit https://aka.ms/tsconfig.json to read more about this file */
/* Basic Options */
// "incremental": true, /* Enable incremental compilation */
"target": "es5", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', 'ES2021', or 'ESNEXT'. */
"module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
// "lib": [], /* Specify library files to be included in the compilation. */
// 是否对js文件编译
// "allowJs": true, /* Allow javascript files to be compiled. */
// 是否检查js代码
// "checkJs": true, /* Report errors in .js files. */
// "jsx": "preserve", /* Specify JSX code generation: 'preserve', 'react-native', 'react', 'react-jsx' or 'react-jsxdev'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
// "declarationMap": true, /* Generates a sourcemap for each corresponding '.d.ts' file. */
// "sourceMap": true, /* Generates corresponding '.map' file. */
// 编译后将代码合并为一个的文件
// 设置outFile后,所有全局做哦永玉中的代码会合并到同一文件中
// "outFile": "./app.js", /* Concatenate and emit output to single file. */
"outDir": "./dist", /* Redirect output structure to the directory. */
// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
// "composite": true, /* Enable project compilation */
// "tsBuildInfoFile": "./", /* Specify file to store incremental compilation information */
// 是否删除注释
// "removeComments": true, /* Do not emit comments to output. */
// 是否生成编译后的文件
// "noEmit": true, /* Do not emit outputs. */
// 错误时是否生成编译后文件
// "noEmitOnError": true,
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
// 严格检查总开关
/* Strict Type-Checking Options */
"strict": true, /* Enable all strict type-checking options. */
// 是否允许有隐式any
// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
// 是否严格的检查空值
// "strictNullChecks": true, /* Enable strict null checks. */
// "strictFunctionTypes": true, /* Enable strict checking of function types. */
// "strictBindCallApply": true, /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
// "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
// 是否允许有不明确类型的this
// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
// 是否启用严格模式
// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
// "noUncheckedIndexedAccess": true, /* Include 'undefined' in index signature results */
// "noImplicitOverride": true, /* Ensure overriding members in derived classes are marked with an 'override' modifier. */
// "noPropertyAccessFromIndexSignature": true, /* Require undeclared properties from index signatures to use element accesses. */
/* Module Resolution Options */
// "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
// "baseUrl": "./", /* Base directory to resolve non-absolute module names. */
// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
// "typeRoots": [], /* List of folders to include type definitions from. */
// "types": [], /* Type declaration files to be included in compilation. */
// "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
"esModuleInterop": true, /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
// "preserveSymlinks": true, /* Do not resolve the real path of symlinks. */
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
/* Source Map Options */
// "sourceRoot": "", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
/* Advanced Options */
"skipLibCheck": true, /* Skip type checking of declaration files. */
"forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */
}
}
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