Ab initio front end --es6 (numerical expansion)

Numerical extension Number.isFinite(),Number.isNaN() ES6 provides a new Number on the Number object Isfinish() and Number Isnan() two methods. Number. Isfinish () is used to check whether a value is finite. Number.isFinite(15); // true Number.isFinite(0.8); // true Number.isFinite(NaN); // false Number.isFinite(Infinity); // false Number.is ...

Posted by Stu on Wed, 19 Jan 2022 14:26:32 +0100

Apache configuration and Application

catalogue 1, Building a virtual web host 2, Domain name based virtual host 3, Options instruction interpreter 4, AllowOverride instruction interpretation 5, IP address based virtual host 6, Apache connection retention 7, Building Web virtual directory and user authorization restrictions 1, Building a virtual web host Virtual web host ...

Posted by Master_Phantom on Wed, 19 Jan 2022 11:09:51 +0100

[responsive layout of mobile Web development]

[responsive layout of mobile Web development] front end notes (20) This study note is a personal summary of teacher Pink's course. Please indicate the source for reprint! 1, Responsive development 1.1 principles of responsive development Media query is used to set the layout and style of devices with different widths, so as to adap ...

Posted by mrgrinch12 on Wed, 19 Jan 2022 07:40:55 +0100

In order to make you advanced Canvas, I spent 7 hours writing 3 interesting games!!!

prefaceHello, I'm Lin Sanxin. I believe you have read my previous introduction to canvas In order to get her started with canvas in 10 minutes, I stayed up late and wrote three small projects and this article , I already have an entry-level understanding of canvas. Today, I wrote three interesting games with canvas to make you happy. Yes, I hav ...

Posted by spicey on Wed, 19 Jan 2022 07:09:16 +0100

Introduction to HTML format and Tags

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 ...

Posted by seeya on Wed, 19 Jan 2022 03:24:43 +0100

The live broadcast delivery system realizes the functions that a complete live broadcast system should have

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 ...

Posted by misfits on Wed, 19 Jan 2022 01:22:40 +0100

Selector summary in CSS

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 ...

Posted by Shiki on Wed, 19 Jan 2022 00:20:56 +0100

Learn the use of VUE filters and listeners from scratch

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 ...

Posted by exoskeleton on Wed, 19 Jan 2022 00:13:16 +0100

You should try these 8 new JS functions

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 ...

Posted by metalblend on Tue, 18 Jan 2022 22:12:51 +0100

10 minutes to learn Vue basics Axios

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 ...

Posted by wolfraider on Tue, 18 Jan 2022 19:05:47 +0100