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 take a chestnut, for example, to publish an article, the initial status status field has only two, one is the "unpublished " status, and the other is ...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...
the desired effect is to empty state.text (that is, the contents of input should be emptied), but not . class App extends Component { constructor(props) { super(props); this.state = { list: this.props.list || [], text: }...
gitlab is installed in the pagoda panel. After installation, visit the URL of gitlab and register an account. After logging in, you find that it is not the default administrator account. Where is the default administrator account? ...
how var arr= a,b,c is split into [a], [b], [c] ...
this question encountered when using workerman s gateway framework Events.php <?php ** * This file is part of workerman. * * Licensed under The MIT License * For full copyright and license information, please see the MIT-LICENSE.txt * Redist...
how to implement if-else if-else in thymeleaf ...