javascript

A small (~3kb minified) shopping cart component that uses HTML5 local storage to remember the cart items (products) the users added to the cart. Also provides a functionality to calculate the total price of selected products in the shopping cart. How to use it: 1. Install & download the package and load the JavaScript file from the dist folder or from a CDN: # Yarn $ yarn add...

Javascipt đang dần trở lên bá chủ và là ngôn ngữ lập trình phổ biến nhất hiện nay, là tiền đề cho hàng loạt những front-end framwork, plugin nổi tiếng đang dần làm thay đổi thế giới. Chính vì thế việc học và hiểu rõ ngôn ngữ này, chỉ nó thôi cũng giúp lập trình viên không sợ chết đói trong mội trường đầy...

1 Preface 1.1 scenario When we display on the page, for better effect, we usually use a custom font@fant-face 。 I used some custom fonts in my previous development. Here is a summary of some of the solutions I am looking for. This article only lists the introduction of local fonts. Due to the lack of practice, the introduction of network Fonts is less. I made a fool of myself 2 text 2.1...

Mobile universal mixins stylusBasic configuration $green = #02a774; $yellow = #F5A100; $bc = #e4e4e4; //One pixel bottom border bottom-border-1px($color) position relative border none &:after content '' position absolute left 0 bottom 0 width 100% height 1px background-color $color transform scaleY(0.5) ...

Large file fragment upload based on node.js When we upload a file, if the file is too large, it may cause the request to time out. Therefore, when it is necessary to upload large files, it is necessary to upload files in segments. At the same time, if the file is too large, in the case of poor network, how to do breakpoint transmission? It is also necessary to record the current uploaded...

Subtotal of HTTP protocol class Main features of HTTP protocol Simple and fast flexible Connectionless Stateless Components of HTTP message Request message Request line Request header Blank line Request body Request line: describes the request method of the client, the name of the request resource, and the version number of the HTTP protocol For example: get / book / java.html http /...

Experience the pipeline function of usually.js — pipe function usually.jsIs a JavaScript function library for modern web development, based on ES6 development. The latest version 2.4.1 and the latest version usually.js add pipeline function——pipeFunction. What is a pipeline function? The function of pipeline is to pass the result of the previous step directly to the function of the...

Cookie explanation and implementation of a cookie operation Library Cookies have a lot of applications in the front end, but sometimes we don’t know much about them. Let’s take a look at its specific usage Set-Cookie The server sets the cookie of the client by setting the response header, as follows: Set Cookie: < cookie name > = < cookie value > Multiple set cookies...

Students who have seen the Vue source code can know that components such as < keep alive >, < transition >, < transition group > and so onThe implementation of a component is an object. Note that it has an attribute abstract that is true, indicating that it is an abstract component. Vue's documents do not mention this concept. In the life cycle of abstract components, we can...