Programmer Group

Introduction to the third party package used Marketed package https://www.npmjs.com/package/marked The function is to convert markdown text content into HTML code For example: var marked = require('marked'); console.log(marked('I am using __markdown__.')); // Outputs: <p>I am using <strong>markdown</ ...

Keep decimal places Here I use two methods, the first is to use BigDecimal, and the second is to use DecimalFormat. The first method: Usage: pass in the double value and return a String type public static String keep_two_decimals(double number){ BigDecimal bigDecimal = new BigDecimal(number); ...

subject 1. To implement a function, k characters in a left-handed string can be used. BCDA is obtained by turning one character left of ABCD ABCD left two characters to get CDAB 2. . determine whether a string is a string after rotation of another string. For example: Given s1 = AABCD and s2 ...

1. Overview In view of the fact that H5 video is quite different (compatible) in the Web ecological environment, this paper mainly introduces the usage of developing chimee component with qiwutuan to play video. chimee component address: http://chimee.org/docs/index.html   2. Features of chimee components Chimee supports MP4, M3U8, FLV an ...

ArangoDB ArangoDB is an open source and free multi model database, which can flexibly build data models by using documents, graphs and key value pairs. Written in c + +, compared with other databases or graph databases, the community of arangodb is relatively small, with few related materials, most of which are in offi ...

What is Mock Server data? In short, if the Api (that is, the server interface) is not written, the front-end cannot be debugged. Mock Server is a service used to simulate the Api interface to return JSON data! Here are three kinds of mock processing, and there are many third-party ones, such as (jsonServer + mockJS, ...

A js interpreter was written a while ago without relying on any third-party libraries. Most of the basic functions of JS, except for objects, have been written out so far. Share and review the main implementation and technical details here. github.com/zuluoaaa/ma... Resolve a fast-ranking function 0 Initialization We enter a meaningful ...

Recently, I learned D3 and wrote a small demo based on others' cases. I encountered some problems. Here's the record: 1. Some pits encountered: (1) V3 and V4 versions in d3.js are quite different, so we must pay attention to the version; (2) when referencing the JS library file of D3.js, you should install it through ...

The purpose of this article is not to introduce how to use it, but to analyze the existing login process and the corresponding adjustments to be made in later formal development. wz framework (let's promote the technology) Introduction: Introduction to wz framework Online experience: Online experience github: vue-framework-wz At the ...

Last article It has been said that it has its own cascading function. You have to use this: https://github.com/patternfly/patternfly-bootstrap-treeview $('#tree').treeview({ showCheckbox: true, data: [data], // data is not optional levels: 3, enableLinks: true, hi ...