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Front-end Vue3 actual combat [handwritten vue project]

Course2857

Course Introduction：Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.

APIPOST tutorial [Popularization of technical concepts related to network communication]

Course1795

Course Introduction：Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn

Issue 22_Comprehensive actual combat

Course5521

Course Introduction：(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....

Issue 22_PHP Programming

Course5172

Course Introduction：(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.

Issue 22_Front-end development

Course8713

Course Introduction：(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...

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Firestore method to get random documents in collection
It is crucial for my application to be able to randomly select multiple documents from a collection in Firebase. Since there is no built-in native function in Firebase (that I know of) to implement a query that does this, my first thought was to use a query cursor to pick a random starting and ending index, given that I have the numbers in the collection number of documents. This approach works, but only in a limited way, as each document will be served sequentially with its neighbor each time; however, I can achieve random documents if I am able to select the document by its index in its parent collection Inquire
2023-10-19 11:39:22

Speed up LIKE queries without literal language
I have a table with 3 columns VARCHAR. I want to make a query to search if an alphanumeric string satisfies these 3 columns. For example: Similar to "%whatever%", but faster. I've seen FULLTEXT indexes used and it works well, but only if I have the words used in natural language. However, these 3 columns contain codes and references. For example: use keyword 1234 to find reference REF12345. Do you have any ideas?
2023-09-13 11:51:14

Use the BFS algorithm to explore the graph and output the shortest path
The goal of the program is to pass through various airports and output the shortest path between PHX and BKK using a breadth-first search algorithm. However, I'm having trouble printing the results. The expected output (shortest path) is: PHX->LAX->MEX->BKKconstairports='PHXBKKOKCJFKLAXMEXEZEHELLOSLAPLIM'.split('');constroutes=[['PHX','LAX'],['PHX','JFK' ],[
2023-09-03 11:42:48

WebGL does not support index drawing using index 255
This is the simplest WebGL test program that creates an index buffer with only a uint8 value of 255. It should draw a red square of size 64px, but it doesn't (the index value doesn't matter for drawing). Somehow WebGL ignores the element at index 255 even though it is in the unsigned byte range. Using 254 or other values, the red square appears as expected. Is this a bug of WebGL or expected behavior? I can't find any relevant information. letcanvas=document.query
2023-08-17 12:37:59

javascript - When traversing Vue's v-for, can the index value be controlled at a maximum value and output back and forth?
Regarding Vue's v-for traversal, can the index index value be controlled to cycle back and forth at a maximum value? Attached is the jsfiddle code address, click to go to jsfiddle preview code>> Code: {code...} {code...} For example, if you want the maximum index value of the loop to be 2, the expected result is as follows...
2017-07-05 11:02:34

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How to connect Baidu Wenxin Yiyan API with PHP to obtain random statements and generate full-text search index

Course Introduction：Method of connecting Baidu Wenxin Yiyan API with PHP to obtain random statements and generate full-text search index Introduction: Full-text search is widely used in actual development and can improve the efficiency and accuracy of data query. Baidu Wenxin Yiyan API provides an interface for randomly obtaining statements. We can use PHP to connect to the API to obtain statements and generate full-text search indexes. This article will introduce how to use PHP to connect to Baidu Wenxin Yiyan API, and demonstrate the process of generating a full-text search index through sample code. Step 1: Apply for Baidu Wenxin Yiyan API

2023-08-14 comment 0656

In-depth understanding of the inverted index mechanism of php Elasticsearch and its application in search engines

Course Introduction：In-depth understanding of the inverted index mechanism of PHPElasticsearch and its application in search engines 1. Introduction In the era of big data, search engines have become the main way for people to find information. In order to improve the efficiency and accuracy of search engines, inverted indexes are widely used in search engine implementation, and PHPElasticsearch is a powerful search engine tool that can be used to build efficient search engines. This article will delve into the inverted index machine in PHPElasticsearch

2023-09-13 comment 0628

Introduction to search engine applications in Java language

Course Introduction：Introduction to search engine applications in Java language With the development of the Internet, search engines play an increasingly important role in our daily lives. From Google to Baidu, search engines have become our first choice for obtaining information. As a programming language widely used in network applications, Java language is also widely used in the field of search engines. This article will introduce search engine applications in Java language, including Lucene, Solr, Elasticsearch, etc. LuceneL

2023-06-10 comment 0515

What are the application scenarios of oracle machines? What about oracles?

Course Introduction：An oracle is an agent that discovers and confirms real-world events and submits this data to the blockchain for use by smart contracts. The Oracle in the blockchain is a trusted data source that sends information to the blockchain for use by other smart contracts. Ethereum-based platforms Augur and Gnosis are already using oracles to receive data about the stock market. All in all, oracles are an important part of multi-signature contracts. Blockchains such as Tezos and EOS are examples of Oracles being used. There must be many investors who want to know more about the application scenarios of oracles? Let me introduce it to you below. What are the application scenarios of oracle machines? Currently, the application areas of oracles in blockchain include

2024-02-26 comment 0449

Develop a highly available distributed search engine using Go language

Course Introduction：Using Go language to develop a highly available distributed search engine Introduction: With the rapid development of the Internet, the explosive growth of data and the increasing demand for fast data retrieval, search engines play a vital role in modern society. However, traditional stand-alone search engines face performance bottlenecks and poor reliability when processing large-scale data. To overcome these problems, distributed search engines emerged. This article will introduce how to use Go language to develop a highly available distributed search engine implementation method and related technical points. first part:

2023-11-20 comment 0130

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