[英]How to use external typescript libraries on client side?
我遵循了本指南: 如何使用gulp將amd模塊編譯為Typescript到單個文件中 。
應用程式
import { CreateModel } from "./Models/CreateModel";
import { CreateView } from "./Views/CreateView";
import { CreateController } from "./Controllers/CreateController";
export class App {
public init() {
const model = new CreateModel();
const view = new CreateView(model);
const controller = new CreateController(model, view);
}
}
CreateController.ts
export class CreateController {
private model: CreateModel;
private view: CreateView;
constructor(model: CreateModel, view: CreateView) {
this.model = model;
this.view = view;
this.init();
}
more code...
}
CreateView.ts
import { CreateModel } from "../Models/CreateModel";
export class CreateView {
private model: CreateModel;
constructor(model: CreateModel) {
this.model = model;
this.init();
}
more code...
}
CreateModel.ts
export class CreateModel {
more code...
}
index.html
<script src="~/Scripts/config.js"></script>
<script data-main="main" src="~/Scripts/require.js"></script>
config.js
var require = {
baseUrl: "../../Scripts/",
paths: {
'App': 'app'
}
};
main.js
requirejs(['App'], function (MyApp) {
var app = new MyApp.App();
app.init();
});
tsconfig.json
{
"compileOnSave": true,
"compilerOptions": {
"lib": [ "es2017", "dom" ],
"moduleResolution": "node",
"module": "amd",
"noImplicitAny": true,
"noEmitOnError": true,
"noUnusedLocals": false,
"noUnusedParameters": false,
"outFile": "./Scripts/app.js",
"removeComments": false,
"sourceMap": true,
"target": "es5"
},
"files": [
"Scripts/Typescripts/App.ts"
],
"exclude": [
"node_modules"
],
"include": [
"./Scripts/Typescripts/**/*"
]
}
這可以正常工作,所有內容都可以編譯到〜/ Scripts / app.js中。 現在,我想為此添加一個外部庫。 它是ts.validator.fluent ,在npm上。 如何在客戶端使用此功能?
我試圖從Github下載文件,將其放在單獨的文件夾中,然后導入:
CreateController.ts
import { IValidator, Validator, ValidationResult } from './Plugins/ts.validator.fluent';
export class CreateController {
...
private checkEmail(validateVm: ValidateVm) {
let validationResult = new Validator(validateVm.value).Validate(ValidateRules.email);
...
}
}
但是當我運行它時,出現以下錯誤:
Failed to load resource: the server responded with a status of 404 (Not Found)
Uncaught Error: Script error for "Plugins/ts.validator.fluent", needed by: Controllers/CreateController
最好的方法是什么?
在客戶端代碼中使用npm依賴關系的最佳方法可能是使用webpack 。
Webpack可以獲取您的JS文件,解決導入問題,然后創建一個包含所有您依賴的代碼的捆綁包(類似於您創建單個app.js
JavaScript文件所執行的操作。當webpack看到可以解析的導入到npm模塊,它也會自動包含該代碼。
注意:您需要注意僅使用專為客戶端使用的NPM軟件包,而不依賴於Node.js環境。 許多軟件包設計為僅在服務器端使用,並且取決於節點庫等。
由於webpack的自動捆綁功能會做類似的事情,因此此時使用require可能變得不必要,並且使事情變得更復雜,此外,將所有代碼導出為單個打字稿文件可能會使事情復雜化。
我建議以下構建過程:
.tmp
) .tmp
中的.js
文件,並指定main
入口點。 對於這樣的事情,開始使用gulp之類的構建系統可能是個好主意,而不是使用運行構建項目所需的單獨命令。 您還可以使用package.json
的"scripts"
屬性來編寫構建命令,這樣您就不必手動運行許多不同的命令。
我最后聽了Sam Lanning的回答,現在可以了!
文件夾結構
├── Scripts
| ├── Ts-build
| ├── Typescripts
| ├── Subfolders
| App.ts
| App.js
└── index.html
tsconfig.json
webpack.config.js
package.json
{
"name": "MyProject",
"version": "1.0.0",
"description": "",
"main": "index.js",
"dependencies": {
"ts.validator.fluent": "^1.3.0"
},
"devDependencies": {
"@types/bootstrap": "^4.3.1",
"@types/jquery": "^3.3.30",
"@types/node": "^12.6.9",
"jquery": "^3.4.1",
"lodash": "^4.17.15",
"popper.js": "^1.15.0",
"source-map-loader": "^0.2.4",
"typescript": "^3.5.3",
"webpack": "^4.39.0",
"webpack-cli": "^3.3.6"
},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"build": "webpack"
},
"author": "",
"license": "ISC"
}
webpack.config.js
var path = require('path');
var webpack = require('webpack');
module.exports = {
devtool: 'source-map',
entry: './Scripts/Ts-build/App',
mode: 'development',
target: 'web',
watch: true,
output: {
filename: 'app.js',
path: path.resolve(__dirname, './Scripts')
},
module: {
rules: [{
test: /\.(js)?$/,
include: path.resolve(__dirname, './Scripts/Ts-build/'),
exclude: /node_modules/
},
{
enforce: "pre",
test: /\.js$/,
loader: "source-map-loader"
}]
},
resolve: {
extensions: [".webpack.js", ".web.js", ".js"]
},
externals: {
// require("jquery") is external and available
// on the global var jQuery
"jquery": "jQuery"
},
plugins: [
new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery',
'window.jQuery': 'jquery'
})
]
};
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