js advanced deep and shallow copy explanation and es5 es6 implementation of circular reference and deep copy of symbol type data

The copy of objects in js is very important. If you don't understand it deeply, you will write fatal bug s. This article will summarize all the copy methods used in the previous project development. The essential reason of object copy and the concept of shallow copy and deep copy Due to the mechanism ...

Posted on Wed, 15 Jan 2020 03:29:08 -0500 by borabora12

Wechat applet chart development (eCharts)

1, Description This article mainly records the use of charts in the development of wechat applet. Here is mainly about the use of echarts, and finally the use of wecharts. As for the difference between the two, echarts is more powerful, but its volume is larger. There are more than 500K imported in, e ...

Posted on Tue, 14 Jan 2020 05:15:04 -0500 by chanw1

Train ticket query system -- using python to monitor more than 12306 tickets

At the recent Spring Festival peak, I started to buy train tickets home from December. However, geese ~ reality is always so cruel that I can't remember the time when I put the tickets, or I can't stare at and swipe the tickets in real time, and I don't know whether the software is reliable or not. Anyw ...

Posted on Tue, 14 Jan 2020 04:55:38 -0500 by justinchrono

04 template technology of interface automation request transfer parameters (JsonPath and Mustache)

1. Demand background In the actual interface test, parameter passing may sometimes require a lot, or we just want a complete set of parameters, including required and non required items, such as the following json: { "store": { "book": [ { "category": "reference", "author": ...

Posted on Tue, 14 Jan 2020 04:06:19 -0500 by bk6662

AOP learning of Spring

Now let's learn aop of spring AOP concept Keyword Meaning aspect Cut, focus (what I can do). PointCut Cut point, define cut rules (who can I do things for) Joinpoint Connection point, specific method of agent needed (specific thing of agent needed) Target Object Represented object (targe ...

Posted on Tue, 14 Jan 2020 03:31:25 -0500 by sarbas

js basic functions

1. Array API of javascript: //Defined array var pageIds = new Array(); pageIds.push('A'); //Array length pageIds.length; //shift: Delete the first item of the original array and return the value of the deleted element; if the array is empty, return undefined var a = [1,2,3,4,5]; var b = ...

Posted on Tue, 14 Jan 2020 02:36:24 -0500 by metrostars

30 lines of Python code crawls all heroes and skins of hero League

30 lines of Python code crawls all heroes and skins of hero League Fragment There are hundreds of personal heroes in the hero League game, and then each hero has multiple skins. As a collection controller, I really want to collect all the pictures of skin. It's hard to praise the poor family! Pre- ...

Posted on Tue, 14 Jan 2020 01:22:54 -0500 by kristolklp

VUE CLI environment construction document

1. Install Node.js Download address https://nodejs.org/zh-cn/download/ 2. Global installation of VUE CLI Press win+R to open the run cmd window and enter the following code. Due to the speed of npm official image access network, we choose to use Taobao's image source npm config set registry https://registry.npm.taobao.org npm install -g @vue/ ...

Posted on Mon, 13 Jan 2020 23:42:14 -0500 by Rovas

dubbo exposes HTTP services

dubbo exposes HTTP services Don't get lost. Welcome to visit again! Catalog dubbo exposes HTTP services Preface Preparation HttpProviderConf configuration class Request response input and output parameters HttpRequest input HttpResponse response Exposure service controller Preface Ge ...

Posted on Mon, 13 Jan 2020 10:12:57 -0500 by carylson

redis implementation queue

Redis is designed for caching, but it can be used for message queuing due to its own characteristics. It has several blocking APIs that can be used. It is these blocking APIs that enable it to do message queuing; In addition, other features of message queuing, such as FIFO (first in, first out), are ...

Posted on Mon, 13 Jan 2020 08:31:25 -0500 by phreek