Object-Oriented Operator Overloading of Python Full Stack Road Series

The concept of operator overloading is as follows: Operator overloading allows classes to intercept regular Python operations; Class can overload all Python expression operators. Classes can also overload built-in operations such as printing, functi ...

Posted on Fri, 16 Aug 2019 00:23:08 -0700 by jesserules

V8 JavaScript Engine: High Performance ES2015+

This article is reproduced from: Mass translationTranslator: smartsrhLinks: http://www.zcfy.cc/article/2978Original: https://v8project.blogspot.sg/2017/02/high-performance-es2015-and-beyond.html Over the past few months, the V8 team has been working hard to get new ES2015 Equivalent to other more advanced JavaScript capabilities ES5 Horizontal. ...

Posted on Thu, 30 May 2019 09:07:36 -0700 by kodstationen

This will be the clearest guide you've ever seen to asynchronous crawlers.

When performing some IO-intensive tasks, programs are often blocked by waiting for IO. For example, in a web crawler, if we use the requests library to make requests, if the response speed of the website is too slow, the program has been waiting for the response of the website, resulting in its crawling efficiency is very low. In order to solv ...

Posted on Sun, 19 May 2019 16:41:30 -0700 by Potatis

Automated Operations and Maintenance Platform (Front-end vue)

The general flow of the front end: The Login component first sends a post request to the back end after entering the username and password, and then saves the returned token and username to the session Storage according to whether the returned data is normal or not, and uses the navigation guard to jump to the main page. There is a default pa ...

Posted on Sat, 18 May 2019 17:43:45 -0700 by yumico23

Brief Introduction to the Use of LESS

LESS as a form of extension of CSS, it does not castrate CSS function, but in the existing CSS grammar, adding a lot of additional functions, so learning LESS is an easy thing, decisive learning! variable It's easy to understand: @nice-blue: #5B83AD; @light-blue: @nice-blue + #111; #header { color: @light-blue; } Output: ...

Posted on Fri, 10 May 2019 06:01:06 -0700 by majik_sheff

Ajax cross-domain requests

I. What is a cross-domain request The domain name http://www.baidu:8080/script/jquery.js is composed of http:/(protocol), www( subdomain name), baidu( main domain name) and 8080(port number). When another domain name corresponds to any one of them, we say that two domain names are cross-domain. If we request data on the page http://www.baidu: ...

Posted on Thu, 11 Apr 2019 17:36:31 -0700 by - - NC - -

jsp technology (3) - EL expression

Introduction to EL Expressions The full name of EL is Expression Language. EL plays a major role in: 1. Data acquisition EL expressions are mainly used to replace script expressions in JSP pages to retrieve java objects and data from various types of web domains. (Objects in a web domain that access properties of javabean s, list collection ...

Posted on Mon, 08 Apr 2019 20:18:32 -0700 by wiseass

Java calls phantomjs to collect web pages generated by ajax loading

A few days ago, when I got all the links to the corresponding pages and was ready to start collecting the corresponding terminal pages according to the links, I found that the data obtained by the program had no corresponding content at all, but the content that my browser saw clearly was there, so the browser looked at the source code and ...

Posted on Mon, 01 Apr 2019 09:15:29 -0700 by lysander

Three Methods of Data Table Conversion to Json

In web development, we may have such a requirement. In order to facilitate the processing of JS in the front desk, we need to convert the queried data source formats such as List, DataTable to Json format. Especially when using Extjs framework, the data format of Ajax asynchronous request is Json. In view of this, I would like to share three w ...

Posted on Wed, 27 Mar 2019 00:06:29 -0700 by jonshutt

android - Implementation Series of Framework (Control of Interface Jump)

Original articles, reprinted please indicate Read first android - Implementation Series of Frameworks (Implementation of Dependency Injection)                        android: Framework Implementation Series (Resource Dependency Injection)Soon after android exposure, I hated the way each interface had to write an activity and fragment. I don ...

Posted on Sun, 24 Mar 2019 20:27:29 -0700 by johncollins