Seven OOP principles of object-oriented (II)

Seven OOP principles of object-oriented (II)

Previous wrote the first four principles, this one continues ~~

　　Interface Isolation: The client should not rely on it does not interface; a dependency on another class of the class should be based on the smallest interface.

　　Is a big vernacular - that is to say as much as possible to refine the interface, interface methods should try less

　　

/**
			 * Oop interface to implement the principle of isolation
			 * @Author gongliying
			 * @date 2019-06-15
			 */
			achieve(){
				class cosmetics {
					constructor(name) {
						this.name = name
					}
					color() {
						console.log(this.name, "颜色")
					}
					efficacy() {
						console.log (this.name, "moisturizing")
					}
					size() {
						console.log(this.name, "粗细")
					}
				}
				class lipstick extends cosmetics {}
				class eyeliner extends cosmetics {}

				let kouhong = new lipstick ( "lipstick")
				kouhong.color ()                               // lipstick color 
				kouhong.efficacy ()　　　　　　　　　　　　　　　　// lipstick moisturizing 
				kouhong.size ()　　　　　　　　　　　　　　　　　　// lipstick thickness

				let yanying = new eyeliner("眼影")
				yanying.color ()	                              // eyeshadow colors 
				yanying.efficacy ()　　　　　　　　　　　　　　　　// eyeshadow moisturizing 
				yanying.size ()　　　　　　　　　　　　　　　　　　// eyeshadow thickness

			},

　　I do indeed have achieved, but there is no special feeling emmmm redundant, but still a little logic seems right? ? ? Because there is no lipstick and eye shadow thickness ah I also have not heard of moisturizing ah, so there are some methods inherited when it becomes a bit redundant, the official word is - the client should not rely on his unwanted interfaces,

　　Following changes

　　　　

/**
			 * Oop interface to implement the principle of isolation
			 * @Author gongliying
			 * @date 2019-06-15
			 */
			achieve(){
				class cosmetics {
					constructor(name) {
						this.name = name
					}
					color() {
						console.log(this.name, "颜色")
					}
				}
				class lipstick extends cosmetics {
					efficacy() {
						console.log (this.name, "moisturizing")
					}
				}
				class eyeliner extends cosmetics {
					size() {
						console.log(this.name, "粗细")
					}
				}

				let kouhong = new lipstick ( "lipstick")
				kouhong.color ()           　　　　　　// lipstick color                 
				kouhong.efficacy ()　　　　　　　　　　　// moisturizing lipstick

				let yanying = new eyeliner("眼影")
				yanying.color ()	                      // eyeshadow colors 
				yanying.size ()　　　　　　　　　　　　　  // eyeshadow thickness

			},

　　This appears to be not very good, with a common approach, also has its own method, the interface will refine, improve flexibility (Mandarin), it does not need to rely on an interface, which is separated from the interface