Programmer Group

introduction Regular expressions are special strings used to match text (character set). If you want to extract a phone number from a text file, you can use a regular expression. If you need to find all files with numbers in the middle of the name, you can use a regular expression. If you want to find all duplicate words in a text block, ...

  as one of the subprojects of Spring Cloud, Spring Cloud OpenFeign provides a solution for calling between services under the microservice architecture by integrating OpenFeign into the Spring Boot application. Firstly, we use the declarative way of OpenFeign to define the Web service client; Secondly, it goes further by integrating Ribbo ...

preface Some time ago, a friend asked me if the front-end could realize the drag and drop function, which is generally used to adjust the list order. Although I haven't done it, I've seen such a website with this function, so I don't hesitate to say that it can be realized (I didn't write it anyway). Who knows, in less than a week, the company ...

Ajax learning notes AJAX is a developer's dream because you can: Update web pages without refreshing pagesRequest data from the server after the page is loadedReceive data from the server after the page is loadedSend data to the server in the background 1. Native js implements ajax <script> var box = $(".box"); $("button").cli ...

        A good memory is not as good as a bad pen. I digest and absorb it myself in the process of writing, so I wrote this JavaScript learning series. The text in the article is what you understand. You can watch it as appropriate.         I saw a very common topic in JavaScript you don't know - Part ...

Community information: Vue: Vue.js professional Chinese community vue official Manual: API — Vue.js 1, Introduction to vue Vue is a progressive framework for building user interface. Vue only focuses on layers and adopts the design of bottom-up incremental development. Vue's goal is to achieve responsive data binding and combined view compon ...

TLDR TTI refers to the interactive time point between the user and the UI interface, which cannot be directly detected by the browser API. The key indicators of TTI are related to longtask, network status, FMP and quiet window. The TTI is comprehensively calculated by using the request agent and the browser MutationObserver. It's a good experi ...

Components are one of the most powerful functions of vue.js, and the scopes of component instances are independent, which means that data between different components cannot be referenced. In general, components can have the following relationships: As shown in the figure above, A and B, B and C, B and D are paternal-child relationships, ...

(for your later review. If there is something wrong, I hope the boss will correct it) 1. What is Axios Axios is a promise based HTTP library that can be used in browsers and node.js. 2.Axios features Create XMLHttpRequests from the browserCreate http request from node.jsPromise API supportedIntercept requests and responsesConvert request da ...

CSS coding specification 1 Preface 2 code style 2.1 documents 2.2 indent 2.3 spaces 2.4 line length 2.5 selector 2.6 properties 3 general 3.1 selector 3.2 attribute abbreviations 3.3 attribute writing order 3.4 clear float 3.5 !important 3.6 z-index 4 values and units 4.1 text 4.2 values 4.3 url() 4.4 length 4.5 color 4.6 ...