ts

victorsun · victorsun · commit d1fc42736b41 · 2023-10-19T21:09:35.000+08:00
diff --git a/18-TypeScript/04-oop/03-interface.ts b/18-TypeScript/04-oop/03-interface.ts
@@ -1,7 +1,7 @@
 (function() {
 
   type myType = {
-    name: string,
+    readonly name: string,
     age: number,
     [propName: string]: any,
   }
@@ -27,6 +27,19 @@
     gender: 'male',
   }
 
+
+
+  // &#20989;&#25968;&#31867;&#22411;&#25509;&#21475;
+  interface SearchFunc {
+    (source: string, subString: string): boolean;
+  }
+  let mySearch: SearchFunc;
+  mySearch = function(source: string, subString: string) {
+    let result = source.search(subString);
+    return result > -1;
+  }
+
+
   // interface &#21644; abstract &#19981;&#21516;&#30340;&#26159; abstract &#21487;&#20197;&#26377;&#20855;&#20307;&#30340;&#26041;&#27861;&#65292;interface &#25152;&#26377;&#30340;&#26041;&#27861;&#37117;&#26159;&#25277;&#35937;&#26041;&#27861;
   // &#25509;&#21475;&#23450;&#20041;&#20102;&#31867;&#30340;&#35268;&#33539;&#26631;&#20934;
   interface myInter {
@@ -44,5 +57,45 @@
     }
   }
 
+  // &#31867;&#31867;&#22411;
+  interface ClockConstructor {
+    new (hour: number, minute: number): ClockInterface;
+  }
+  interface ClockInterface {
+    tick(): void;
+  }
+  function createClock(ctor: ClockConstructor, hour: number, minute: number): ClockInterface {
+      return new ctor(hour, minute);
+  }
+  class DigitalClock implements ClockInterface {
+      constructor(h: number, m: number) { }
+      tick() {
+          console.log("beep beep");
+      }
+  }
+  class AnalogClock implements ClockInterface {
+      constructor(h: number, m: number) { }
+      tick() {
+          console.log("tick tock");
+      }
+  }
+  // &#20256;&#20837;&#31867;&#26500;&#36896;&#20989;&#25968;
+  let digital = createClock(DigitalClock, 12, 17);
+  let analog = createClock(AnalogClock, 7, 32);
+
+
+  // &#25509;&#21475;&#32487;&#25215;
+  interface Shape {
+    color: string;
+  }
+  interface PenStroke {
+      penWidth: number;
+  }
+  interface Square extends Shape, PenStroke {
+      sideLength: number;
+  }
+  let square = <Square>{};
+
+  
 
 })();
diff --git a/18-TypeScript/04-oop/05-&#27867;&#22411;.ts b/18-TypeScript/04-oop/05-&#27867;&#22411;.ts
@@ -34,4 +34,22 @@ class MyClass<T> {
     this.name = name;
   }
 }
-const mc = new MyClass<string>('csxiaoyao');
+const mc = new MyClass<string>('csxiaoyao');
+
+
+// &#20351;&#29992;&#24102;&#26377;&#35843;&#29992;&#31614;&#21517;&#30340;&#23545;&#35937;&#23383;&#38754;&#37327;&#26469;&#23450;&#20041;&#27867;&#22411;&#20989;&#25968;
+function identity<T>(arg: T): T {
+  return arg;
+}
+let myIdentity: {
+  <T>(arg: T): T
+} = identity;
+interface GenericIdentityFn<T> {
+  (arg: T): T;
+}
+let myIdentity2: GenericIdentityFn<number> = identity;
+
+// &#22312;&#27867;&#22411;&#37324;&#20351;&#29992;&#31867;&#31867;&#22411;  &#22312;TypeScript&#20351;&#29992;&#27867;&#22411;&#21019;&#24314;&#24037;&#21378;&#20989;&#25968;&#26102;&#65292;&#38656;&#35201;&#24341;&#29992;&#26500;&#36896;&#20989;&#25968;&#30340;&#31867;&#31867;&#22411;
+function create<T>(c: { new(): T; }): T {
+  return new c();
+}
