in actual projects, customers often clap their heads and decide to add and delete some status fields. take a chestnut, for example, to publish an article, the initial status status field has only two, one is the "unpublished " status, and the other is ...
the code is as follows export class SHost_Room{ constructor(rooms){ } } let rooms = [...] let shRooms = new SHost_Room(rooms); I m not good at object-oriented, and I feel like I don t have a train of thought. ...
question: in some current projects, such as the first column of the first row of the table is fixed, the form radio and all selections are implemented by themselves using js (not considering using the framework for the time being). So how to effectively ...
Many people on use calculator examples to illustrate these two principles, but it seems that the difference is that OCP has an abstract class, while SRP does not inherit abstraction compared with SRP, OCP, the examples of 1.OCP are all independent of...
I would like to ask whether there must be an error in querying a certain table in a database, and how to solve I used the data inserted by wampserver, with navicat. Before I tried to query multiple tables, I failed, and then tried it with the simplest o...
CPP says compile time determination and run time determination how should I understand, static and dynamic types inherited by are easy to understand, static type compilation time is determined, and dynamic type runtime is determined. when it comes to ...
export function postMethod(data) { const baseURL = process.env.BASE_API axios({ method: post , url: baseURL + img_upload , timeout: 50000, data: data, headers: { loginToken : getLoginToken() } }).then(res =&g...
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there are application.properties and application-dev.properties and application-prod.properties files in the 1.springboot project. where environment switching can be performed in application.properties spring.profiles.active=dev now I package with t...