H5 cross domain request

There are many schemes for cross domain requests. Let's talk about some simple schemesSolution 1:It is also a relatively simple and straightforward way: use Google Chrome browser to realize JavaScript cross domain requests and reduce the security level. The window method is as follows:.Operation method:Find the Google Chrome browser icon and ri ...

Added by lkq on Thu, 09 Dec 2021 08:22:30 +0200

Why is MyISAM faster than InnoDB query in MySQL

We all know that in MySQL, MyISAM is faster than InnoDB query, but many people don't know the principle. Today, let's talk about the principle and verify whether MyISAM is really faster than InnoDB. Before exploring the principle, let's verify the query speed. verification Let's verify two questions: 1. Is MyISAM faster than InnoDB query t ...

Added by patrikG on Thu, 09 Dec 2021 07:54:50 +0200

Come on, touch and write a hook

Come on, touch and write a hookhello, this is Xiaochen. Today, I will take you to write a mini version of hooks to facilitate you to understand the operation mechanism of hook in the source code. It is equipped with diagrams and nanny level tutorials. Just ask the students for a little helpStep 1: introduce React and React DOMBecause we want to ...

Added by Ben Cleary on Thu, 09 Dec 2021 08:57:31 +0200

Design an LRU efficiently

prefaceHello, I'm bigsai. I haven't seen you for a long time. I miss you very much!Recently, a little friend complained to me that he didn't meet LRU. He said that he knew that he had been asked about LRU a long time ago, but he thought he wouldn't meet it, so he didn't prepare for it for the time being.Unfortunately, I really got it! His mood ...

Added by lukesb on Thu, 09 Dec 2021 08:35:28 +0200

C + + brush notes

Write in front: mainly for myself. My professional c + + curriculum planning requirements are very low, and I only learn the part of c You are very welcome to give me a little guidance 55 function Perfect number A unit holds a diving competition in a lake. This is a team project. Each team is composed of n people and requires all team membe ...

Added by KC_Geek on Thu, 09 Dec 2021 08:47:34 +0200

Signature generation and verification of PHP development API interface

In the development process, we often deal with interfaces. Sometimes we call the interfaces of other websites, and sometimes we provide the interfaces of our own websites for others. However, signature verification is indispensable in the process of calling.When designing signature verification, please pay attention to the following points: Var ...

Added by johnbrayn on Thu, 09 Dec 2021 08:30:18 +0200