Programmer Think

Introduction: This article will talk about an important problem in Vue, that is, how to share data between components? As we said before, each component is independent of each other and can be used by importing components and registering components. How can we transfer data between components? 1. Relationship between components The relat ...

1, DOM Foundation DOM: document object model, which is used to manipulate page labels and css DOM is actually part of BOM Basic operations of DOM: console.log(document) ; //Print entire page console.log(document.documentElement) ; //Print html console.log(document.body) ; //Print body content console.log(document.head) ; //Pr ...

1, The core of Ajax: XMLHttpRequest Concept: XMLHttpRequest is a built-in constructor in the browser (belonging to the category of BOM and DOM) to create objectsFunction: used to initiate Ajax requests is the core principle of Ajax 1. Send the request using XMLHttpRequest Parsing ajax requests axios({ url:'Request address', method:' ...

JavaScript from getting started to mastering video through train:         [1-200] JavaScript video tutorial, from introduction to mastery, with more cases of practice, easy to understand!         [201-300] JavaScript video tutorial, from introduction to mastery, with more cases of practice, easy to understand! 1, JavaScript operation table ...

Recently, I was working on a small program project like a mall. Cards and vouchers are indispensable for the mall. At first, I planned to cut the UI, but I found it not so convenient, so I made a fuss by referring to various materials. Without much nonsense, I went to the renderings first: It can be seen from the effect drawing that the coupon ...

Recently, there is a requirement for a permission tree, and the structure of the tree is relatively deep. If you want to implement it, you can obtain the value of the parent node and pass it to the back end after incomplete selection of the child node. After incomplete sub node selection, you want to obtain the value of the parent node As sho ...

preface When we develop the project, we need close cooperation between the front and rear ends to ensure the stability and efficiency of the project. The front end passes the request parameters to the back end through the URL interface, and the back end returns the corresponding response information according to these different request paramet ...

1: Filter chain Multiple Filter programs can be registered in a Web application, and each Filter program can intercept a URL. If multiple Filter programs intercept the same URL, these filters will form a Filter chain (also known as Filter chain). The Filter chain is represented by the FilterChain object. There is a doFilter () method in the Fi ...

ES6 (xxx) Decorator, core-decorators.js, Mixin, Trait [note] the Decorator proposal has been greatly revised and has not been finalized yet. I wonder if the grammar will change again. The following content is completely based on previous proposals and is a little outdated. After waiting for finalization, it needs to be completely rewritten ...

analysis: ① : initialize todo project ② : create 3 components and internal code ③ : prepare the style file of styles ④: App.vue is introduced for registration. The outermost container class name is todoapp Prepare in advance: prepare the style file of styles (copy it from the preview materials) in app Vue introduction and use (there is a link ...