This commit is contained in:
Philippe Torrel
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(() => {
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// src/01_interface-user.ts
|
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{
|
||||
const userOne = {
|
||||
id: 1,
|
||||
name: "John",
|
||||
lastName: "Wick"
|
||||
// username: 'JW', // Object literal may only specify known properties, and 'username' does not exist in type 'User'.
|
||||
};
|
||||
userOne.id = 2;
|
||||
userOne.lastName = "Doe";
|
||||
console.log(userOne);
|
||||
const userTwo = {
|
||||
name: "Jane",
|
||||
lastName: "Doe",
|
||||
id: 3
|
||||
};
|
||||
Object.freeze(userTwo);
|
||||
if (Object.hasOwn(userTwo, "name") && Object.hasOwn(userTwo, "id") && Object.hasOwn(userTwo, "lastName") && typeof userTwo.name === "string" && typeof userTwo.id === "number" && typeof userTwo.lastName === "string") {
|
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console.log(userTwo);
|
||||
console.log("Nerdy, without TS");
|
||||
}
|
||||
}
|
||||
})();
|
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@@ -0,0 +1,19 @@
|
||||
(() => {
|
||||
// src/02_unions.ts
|
||||
{
|
||||
let getResult = function() {
|
||||
return Math.random() > 0.5 ? "Success" : 404;
|
||||
}, getResult2 = function() {
|
||||
return Math.random() > 0.5 ? "success" : "error";
|
||||
};
|
||||
let text = "Ich bin ein Text";
|
||||
let value;
|
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let value2;
|
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value = 123;
|
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value = "einszweidrei";
|
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value2 = 123;
|
||||
value2 = "einszweidrei";
|
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console.log(getResult());
|
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console.log(getResult2());
|
||||
}
|
||||
})();
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@@ -0,0 +1,21 @@
|
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(() => {
|
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// src/03_generics.ts
|
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{
|
||||
let identity = function(value) {
|
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return value;
|
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};
|
||||
const identity2 = (value) => {
|
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return value;
|
||||
};
|
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let stringResult = identity("Hello");
|
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let numberResult = identity2(42);
|
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console.log(stringResult, numberResult);
|
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let names = ["Tick", "Trick", "Track"];
|
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let names2 = ["Tick", "Trick", "Track"];
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let numbers = [1, 2, 3];
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let numbers2 = [1, 2, 3];
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let namesWithAges = ["John", 48, "Alice", 23];
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let namesWithAges2 = ["John", 48, "Alice", 23];
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console.log(names, names2, numbers, numbers2, namesWithAges, namesWithAges2);
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}
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})();
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+13
@@ -0,0 +1,13 @@
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(() => {
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// src/04_static-type-checking.ts
|
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{
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const data = [1, 2, 3, 4, 5, 6];
|
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console.log(data.length);
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console.log("click");
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});
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}
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})();
|
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@@ -0,0 +1,8 @@
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||||
(() => {
|
||||
// src/05_type-definition-fn.ts
|
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{
|
||||
let calculateTotal = function(cart) {
|
||||
return cart.getTotal();
|
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};
|
||||
}
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||||
})();
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||||
@@ -0,0 +1,24 @@
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||||
<!doctype html>
|
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<html lang="de">
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<head>
|
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<meta charset="UTF-8" />
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||
<title>TypeScript - Grundlagen</title>
|
||||
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
|
||||
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||||
<script src="assets/js/01_interface-user.js" defer></script>
|
||||
</head>
|
||||
<body>
|
||||
<main>
|
||||
<div class="container py-5">
|
||||
<h1>TypeScript - Grundlagen</h1>
|
||||
<p>
|
||||
TypeScript ist eine von Microsoft entwickelte Skriptsprache, die auf den Vorschlägen zum ECMAScript-6-Standard
|
||||
basiert und statische Typisierung zu JavaScript hinzufügt. Sprachkonstrukte von TypeScript, wie Klassen,
|
||||
Vererbung, Module und anonyme Funktionen, wurden auch in ECMAScript 6 übernommen.
|
||||
</p>
|
||||
<img src="assets/img/Understand-Typescript.jpg" alt="TypeScript Kreisdiagramm" class="img-thumbnail" />
|
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</div>
|
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</main>
|
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</body>
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</html>
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||||
"optional": true,
|
||||
"os": [
|
||||
"netbsd"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/netbsd-x64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/netbsd-x64/-/netbsd-x64-0.28.2.tgz",
|
||||
"integrity": "sha512-lqnzCV+mM0gIADaKihiCg6ifgfU2L3h5E33rNQBN1Y4MaVGnzryzmvvf7UHxprpQdE8hpqLolJ9Rl+SkIRDpyw==",
|
||||
"cpu": [
|
||||
"x64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"netbsd"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/openbsd-arm64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/openbsd-arm64/-/openbsd-arm64-0.28.2.tgz",
|
||||
"integrity": "sha512-AL2qJILH7lNjrDmCQDvdxMfAUIv8KMNZOvrwAQ8i8//ntL9FflhOyMJ8OZSMBb8/AWXe3/5v5S20y3zCoZWKoQ==",
|
||||
"cpu": [
|
||||
"arm64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"openbsd"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/openbsd-x64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/openbsd-x64/-/openbsd-x64-0.28.2.tgz",
|
||||
"integrity": "sha512-QtiuPytchRyC4rwUKhexJdQKvDuZ6hWloi3igqPQNUJCS1/v9EiO3UTOXR6A3FoMo4fnAKbWJdqaIwhOzh8qEw==",
|
||||
"cpu": [
|
||||
"x64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"openbsd"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/openharmony-arm64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/openharmony-arm64/-/openharmony-arm64-0.28.2.tgz",
|
||||
"integrity": "sha512-WkhYDmpTjLvGlScA1rwjRUmhl4k8oXR3cIbtqWmELgU/dFeHHlEllxDvdWcNJV9rbzCexB5vz8gtNewWLgCT7Q==",
|
||||
"cpu": [
|
||||
"arm64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"openharmony"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/sunos-x64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/sunos-x64/-/sunos-x64-0.28.2.tgz",
|
||||
"integrity": "sha512-GPMSkTOtMnv2U2F8gxe4Io6qmVs+YKyp832Etqqxr0hFngmXQ3rzwytelm3GIn7T4VviRUlf3sOgBOiTdvaf7g==",
|
||||
"cpu": [
|
||||
"x64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"sunos"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/win32-arm64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/win32-arm64/-/win32-arm64-0.28.2.tgz",
|
||||
"integrity": "sha512-PIhhEkE9uPBleRBrQEJpUn7MBnibZzbGzYWPmY3x+YoVg/95zbjB4CxPPOQ8l5tYYM4mMaCthF8/1DIfBQQyWQ==",
|
||||
"cpu": [
|
||||
"arm64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"win32"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/win32-ia32": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.28.2.tgz",
|
||||
"integrity": "sha512-YmJbfTlvU7Sdn9BB+4PRES4oB6pxgS37MAONj+hBr/cpXS1aBPKXxNnDbu+QCWPj0o9dgyxeq79g6c5P8KeuYA==",
|
||||
"cpu": [
|
||||
"ia32"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"win32"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/@esbuild/win32-x64": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.28.2.tgz",
|
||||
"integrity": "sha512-5ebpxr3nWMzrL/rnUI755Jkuee0bHL/Gq0WTF9lvcpv73wAp5eu8MfBUgWK9bhWvZjj7yX8etf/8tI8Ney695g==",
|
||||
"cpu": [
|
||||
"x64"
|
||||
],
|
||||
"dev": true,
|
||||
"license": "MIT",
|
||||
"optional": true,
|
||||
"os": [
|
||||
"win32"
|
||||
],
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
}
|
||||
},
|
||||
"node_modules/esbuild": {
|
||||
"version": "0.28.2",
|
||||
"resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.28.2.tgz",
|
||||
"integrity": "sha512-HKVLS8dvII+xoKW9kmqxbRKrnWEXfJJr/FZhhJmiqIB0e053QNYFqOBouTMO/k5sID4MvCiUCvv8b9M4h32wIA==",
|
||||
"dev": true,
|
||||
"hasInstallScript": true,
|
||||
"license": "MIT",
|
||||
"bin": {
|
||||
"esbuild": "bin/esbuild"
|
||||
},
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
},
|
||||
"optionalDependencies": {
|
||||
"@esbuild/aix-ppc64": "0.28.2",
|
||||
"@esbuild/android-arm": "0.28.2",
|
||||
"@esbuild/android-arm64": "0.28.2",
|
||||
"@esbuild/android-x64": "0.28.2",
|
||||
"@esbuild/darwin-arm64": "0.28.2",
|
||||
"@esbuild/darwin-x64": "0.28.2",
|
||||
"@esbuild/freebsd-arm64": "0.28.2",
|
||||
"@esbuild/freebsd-x64": "0.28.2",
|
||||
"@esbuild/linux-arm": "0.28.2",
|
||||
"@esbuild/linux-arm64": "0.28.2",
|
||||
"@esbuild/linux-ia32": "0.28.2",
|
||||
"@esbuild/linux-loong64": "0.28.2",
|
||||
"@esbuild/linux-mips64el": "0.28.2",
|
||||
"@esbuild/linux-ppc64": "0.28.2",
|
||||
"@esbuild/linux-riscv64": "0.28.2",
|
||||
"@esbuild/linux-s390x": "0.28.2",
|
||||
"@esbuild/linux-x64": "0.28.2",
|
||||
"@esbuild/netbsd-arm64": "0.28.2",
|
||||
"@esbuild/netbsd-x64": "0.28.2",
|
||||
"@esbuild/openbsd-arm64": "0.28.2",
|
||||
"@esbuild/openbsd-x64": "0.28.2",
|
||||
"@esbuild/openharmony-arm64": "0.28.2",
|
||||
"@esbuild/sunos-x64": "0.28.2",
|
||||
"@esbuild/win32-arm64": "0.28.2",
|
||||
"@esbuild/win32-ia32": "0.28.2",
|
||||
"@esbuild/win32-x64": "0.28.2"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,14 @@
|
||||
{
|
||||
"name": "01_ts-fundamentals",
|
||||
"version": "1.0.0",
|
||||
"description": "",
|
||||
"main": "index.js",
|
||||
"scripts": {
|
||||
"ts": "npx esbuild \"src/*.ts\" --watch --bundle --outdir=\"assets/js\" --loader:.ts=ts"
|
||||
},
|
||||
"keywords": [],
|
||||
"type": "module",
|
||||
"devDependencies": {
|
||||
"esbuild": "^0.28.2"
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,48 @@
|
||||
{
|
||||
interface User {
|
||||
name: string;
|
||||
lastName: string;
|
||||
id: number;
|
||||
}
|
||||
|
||||
const userOne: User = {
|
||||
id: 1,
|
||||
name: 'John',
|
||||
lastName: 'Wick',
|
||||
// username: 'JW', // Object literal may only specify known properties, and 'username' does not exist in type 'User'.
|
||||
};
|
||||
|
||||
userOne.id = 2;
|
||||
userOne.lastName = 'Doe';
|
||||
|
||||
// userOne._id = 2; // Property '_id' does not exist on type 'User'.
|
||||
// userOne.lastname = 'Wick' // Property 'lastname' does not exist on type 'User'. Did you mean 'lastName'?
|
||||
|
||||
console.log(userOne);
|
||||
|
||||
// ==== OHNE TypeScript
|
||||
|
||||
const userTwo = {
|
||||
name: 'Jane',
|
||||
lastName: 'Doe',
|
||||
id: 3,
|
||||
};
|
||||
|
||||
Object.freeze(userTwo);
|
||||
// userTwo.username = 'JD'
|
||||
// userTwo.lastname = 'JD' // Property 'lastname' does not exist on type '{ name: string; lastName: string; id: number; }'. Did you mean 'lastName'?
|
||||
|
||||
if (
|
||||
Object.hasOwn(userTwo, 'name') &&
|
||||
Object.hasOwn(userTwo, 'id') &&
|
||||
Object.hasOwn(userTwo, 'lastName') &&
|
||||
typeof userTwo.name === 'string' &&
|
||||
typeof userTwo.id === 'number' &&
|
||||
typeof userTwo.lastName === 'string'
|
||||
) {
|
||||
console.log(userTwo);
|
||||
console.log('Nerdy, without TS');
|
||||
}
|
||||
|
||||
// userTwo.hasOwnProperty('name');
|
||||
}
|
||||
@@ -0,0 +1,26 @@
|
||||
// Unions - Ein Union Type ermöglicht es dir, eine Variable zu deklarieren, die mehr als einen Werttyp enthalten kann.
|
||||
{
|
||||
// Type Annotation
|
||||
let text: string = 'Ich bin ein Text';
|
||||
|
||||
type StringOrNumber = string | number; // unions
|
||||
|
||||
let value: string | number; // unions
|
||||
let value2: StringOrNumber;
|
||||
|
||||
value = 123;
|
||||
value = 'einszweidrei';
|
||||
|
||||
value2 = 123;
|
||||
value2 = 'einszweidrei';
|
||||
|
||||
function getResult(): string | number {
|
||||
return Math.random() > 0.5 ? 'Success' : 404;
|
||||
}
|
||||
function getResult2(): string {
|
||||
return Math.random() > 0.5 ? 'success' : 'error';
|
||||
}
|
||||
|
||||
console.log(getResult());
|
||||
console.log(getResult2());
|
||||
}
|
||||
@@ -0,0 +1,33 @@
|
||||
// Generics - Mit Hilfe von Generics kannst du wiederverwendbare Komponenten erstellen, die mit verschiedenen Datentypen arbeiten können und dabei die Typsicherheit wahren.
|
||||
|
||||
{
|
||||
// Generic
|
||||
function identity<T>(value: T): T {
|
||||
return value;
|
||||
}
|
||||
|
||||
const identity2 = <T>(value: T): T => {
|
||||
return value;
|
||||
};
|
||||
|
||||
let stringResult = identity<string>('Hello');
|
||||
let numberResult = identity2<number>(42);
|
||||
|
||||
console.log(stringResult, numberResult);
|
||||
|
||||
// Type Syntax
|
||||
|
||||
type StringArray = Array<string>; // string[];
|
||||
type NumberArray = Array<number>; // number[]
|
||||
|
||||
let names: StringArray = ['Tick', 'Trick', 'Track'];
|
||||
let names2: string[] = ['Tick', 'Trick', 'Track'];
|
||||
|
||||
let numbers: NumberArray = [1, 2, 3];
|
||||
let numbers2: number[] = [1, 2, 3];
|
||||
|
||||
let namesWithAges: Array<string | number> = ['John', 48, 'Alice', 23];
|
||||
let namesWithAges2: (string | number)[] = ['John', 48, 'Alice', 23];
|
||||
|
||||
console.log(names, names2, numbers, numbers2, namesWithAges, namesWithAges2);
|
||||
}
|
||||
@@ -0,0 +1,19 @@
|
||||
// Static Type Checking - Error linting während der Entwicklung
|
||||
|
||||
{
|
||||
const data = [1, 2, 3, 4, 5, 6];
|
||||
|
||||
console.log(data.length);
|
||||
|
||||
// data(); // This expression is not callable. Type 'number[]' has no call signatures.
|
||||
// data.toLowerCase(); // Property 'toLowerCase' does not exist on type 'number[]'.
|
||||
// data.addEventListener('click', () => {}) // Property 'addEventListener' does not exist on type 'number[]'.
|
||||
|
||||
const liEls = document.querySelectorAll('li');
|
||||
|
||||
liEls.forEach((el) => {
|
||||
el.addEventListener('click', (e) => {
|
||||
console.log('click');
|
||||
});
|
||||
});
|
||||
}
|
||||
@@ -0,0 +1,10 @@
|
||||
// Type Definition für Funktionen
|
||||
{
|
||||
interface ShoppingCart {
|
||||
getTotal: () => number;
|
||||
}
|
||||
|
||||
function calculateTotal(cart: ShoppingCart): number {
|
||||
return cart.getTotal();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user