feat(typescript): 18-模板方法模式

DesignPattern/18-模板方法模式.md

@@ -618,3 +618,89 @@ func main() {
 }
 ```
 
+### Typescript
+
+``` typescript
+abstract class AbstractTemplate {
+  coffeeName: string;
+
+  constructor(coffee: string) {
+    this.coffeeName = coffee;
+  }
+  templateMethod() {
+    console.log(`Making ${this.coffeeName}:`);
+    this.grindingCoffeeBeans();
+    this.brewingCoffee();
+    this.addingCondiments();
+    console.log();
+  }
+
+  abstract grindingCoffeeBeans(): void;
+  abstract brewingCoffee(): void;
+  abstract addingCondiments(): void;
+}
+
+class AmericaCoffee extends AbstractTemplate {
+  constructor() {
+    super("American Coffee");
+  }
+
+  grindingCoffeeBeans(): void {
+    console.log("Grinding coffee beans");
+  }
+
+  brewingCoffee(): void {
+    console.log("Brewing coffee");
+  }
+
+  addingCondiments(): void {
+    console.log("Adding condiments");
+  }
+}
+
+class Latte extends AbstractTemplate {
+  constructor() {
+    super("Latte");
+  }
+
+  grindingCoffeeBeans(): void {
+    console.log("Grinding coffee beans");
+  }
+
+  brewingCoffee(): void {
+    console.log("Brewing coffee");
+  }
+
+  addingCondiments(): void {
+    console.log("Adding milk");
+    console.log("Adding condiments");
+  }
+}
+
+// @ts-ignore
+entry(2, (...args) => {
+  args.forEach((type) => {
+    let coffee: AbstractTemplate;
+    if (type === 1) {
+      coffee = new AmericaCoffee();
+    } else if (type === 2) {
+      coffee = new Latte();
+    } else {
+      throw "type error";
+    }
+
+    coffee.templateMethod();
+  });
+})(1)(2);
+
+export function entry(count: number, fn: (...args: any) => void) {
+  function dfs(...args) {
+    if (args.length < count) {
+      return (arg) => dfs(...args, arg);
+    }
+
+    return fn(...args);
+  }
+  return dfs;
+}
+```