The Template Method Pattern is a behavioral design pattern that defines the
skeleton of an algorithm in a base class, delegating specific steps to
subclasses. This pattern promotes code reuse and ensures consistency in the
overall structure of the algorithm while allowing flexibility in its details.
abstractclassAbstractClass{templateMethod():void{this.primitiveOperation1();this.primitiveOperation2();// No need to return here if void
}abstractprimitiveOperation1():void;// Abstract methods
abstractprimitiveOperation2():void;}classConcreteClassextendsAbstractClass{primitiveOperation1():void{console.log("primitiveOperation1");}primitiveOperation2():void{console.log("primitiveOperation2");}}// Static Template Method (using a factory function for better type inference)
classStaticAbstractClass{statictemplateMethod<TextendsStaticAbstractClass>(this:new()=>T):void{constcls=newthis();cls.primitiveOperation1();cls.primitiveOperation2();}primitiveOperation1():void{// Default implementations
}primitiveOperation2():void{// Implement this method
}}classStaticConcreteClassextendsStaticAbstractClass{primitiveOperation1():void{console.log("primitiveOperation1");}primitiveOperation2():void{console.log("primitiveOperation2");}}constexample={run():void{constconcrete=newConcreteClass();concrete.templateMethod();StaticConcreteClass.templateMethod();}};example.run();