Programmer Think

Basic understanding of the front end: 1. Structure (HTML) Used to describe the page structure2. Performance (CSS) Controls the style of elements in the page Beautify the page in the front end3. Behavior (JavaScript) Used to respond to user actions Play the role of page layout modification in the front end Basic format of HTML Hyper Text Mark ...

How to develop a complete live delivery system, we first need to collect the video and audio functions of the anchor, and then transfer them to the streaming media server. This article mainly explains how to collect the video and audio functions of the anchor. At present, you can switch the front and rear cameras and focus cursor. The live deli ...

I Basic selector Basic selector: Label selector: for a class of labelsID selector: used for a specific labelClass selector: use for all tags you wantUniversal selector (wildcard): applicable to all labels (not recommended) selectorExampledescribe.class.navSelect all elements of class = "intro"#id#firstnameSelect all elements wi ...

filter Basic Usage Filters are commonly used for text formatting and can be bound to the v-bind attribute. They are added to the tail of js and called by the "pipe character". They can only be used in Vue 2.0. For example: < p > the value of message is {{message | capitalize} < / P > use the pipe character to call ...

Abstract: This paper mainly introduces several proposals that have entered stage 4, which are expected to be gradually incorporated into the standard in 2022. This article is shared from Huawei cloud community< 8 new JavaScript features you should try in 2022 >, author: front end picker. Since the joint release of JavaScript by Netscape a ...

Network request review. We have contacted some before. Ajax and jQuery encapsulate one based on XHR objects. We have also contacted a network request and request object in our applet. In React, I also touched a Fetch object. In Vue, we have a better scheme to cooperate with Vue: Axios. Of course, at the beginning of Vue, the official website ma ...

Vuex 1. Concept A Vue plug-in that implements centralized state (data) management in Vue. It centrally manages (reads / writes) the shared state of multiple components in Vue applications. It is also a way of communication between components and is suitable for communication between any components 2. When to use? When multiple components ne ...

In the last article, we learned the head tag. All the tags we learned later are located in the "body" tag of the page Before learning, let's learn how to use annotations in html <!--Contents of notes--> Adding comments to key code is a good programming habit. In actual development, comments on function module code are very im ...

Get geographic location information using HTML5 How to use HTML5 geolocation For example, geoml5 supports more precise location functions on modern handheld devices, especially HTML5. First, we need to check whether the user's device browser supports geographic positioning, and if so, obtain geographic information. Note that this feature may ...

In the last two issues, we explained the source code of Axios:Axios source code interpretation - requestAxios source code interpretation -- network requestToday, we will implement a simple Axios to implement network requests on the Node side, and support some basic configurations, such as baseURL, url, request method, interceptor, cancel reques ...