Programmer Group

async function rejectionWithReturn(){ try{ return Promise.reject(new Error()) } catch (e){ return "Saved" } } rejectionWithReturn().then((ret) => { console.log(ret) }) //a. the function can be changed into an async function by the keyword async before the function body //b. in the async function, ...

Create xml data transformation by DOM parsing of json data format The first JSON tool to use is org.json In the past, FastJson was used. At the beginning of contact, it was still around many pits. However, it was also very easy to touch some of them at last Start with the code dome {"result": [{"comments": [{"id":"489ac5ea-c13 ...

Basic use of Requests install pip install requests I. Requests module request Get web page (without parameters) r = requests.get('http://www.chinahufei.com') r = requests.post('http://www.chinahufei.com') r = requests.delete('http://www.chinahufei.com') r = requests.head('http://www.chinahufei.com') r = requests.options('http://www.chinahuf ...

1. User defined login processed successfullyWhat needs to be handled successfully is user-defined login, because there is more than one login behavior, which may be ajax request, and the default is form submit jump behavior, which is not a result we want at this time. If you want to customize the behavior after successful login? Only the Authe ...

Another OneDrive command line client Be based on Laravel-Zero , and made a lot of changes. This project references onedrivecmd , but the language is based on PHP. After all, PHP is the best language in the world. OLAINDEX-CMD is the command line version of OLAINDEX Github Project address: https://github.com/WangNingkai/OLAINDEX-CMD Characteri ...

Front end performance indicators, mostly including TTFB, first screen, first interactive time, etc There are a lot of related articles, so we won't talk about the details here. Please refer to the end of the article   In general, we need to know that the browser (New) provides us with the Performance API. With this property, we can get a ser ...

Crawls to take the Douban top 250 movie score, the poster, the movie review and so on data!   this project is the most basic and simple example among reptiles; Later, there will be more advanced and automated crawlers using the crawler framework.   the process of this project is to use requests request library to get html, and then us ...

Just contacted netcore, the following configuration instructions I am using and some points to be injected 1. I don't want to use constructor injection in my project, so I refer to the third-party Autofac package to manage my service. In the controller, I just need to create public iClass class{get;set;} 2. I use dll reflection to inject serv ...

03-HK integrated Redux This article is hkzf The series of mobile tutorials aims to help beginners quickly master the project development based on React technology stack through a series of articles. Redux introduce motivation JavaScript needs to manage more states than ever, and Redux tries to make state changes predictable Three principles S ...

Native ajax operations JavaScript asynchronous GET request // Step 1: create an ajax object //Determine the browser type of the user and decide how to use ajax objects if (typeof ActiveXObject != "undefined") { var version = [ 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.3.0 ...