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This article provides an in-depth exploration of various methods for dynamically setting HTML element IDs using JavaScript, covering core APIs such as getElementById, querySelectorAll, and createElement. Through detailed code examples and step-by-step explanations, it demonstrates how to assign IDs to both existing and newly created elements, with special focus on practical applications of Base64-encoded IDs. The discussion also includes performance optimization and best practices, offering comprehensive technical guidance for developers in dynamic web page generation.

This article explores the technical implementation of passing JSON array parameters in URLs, focusing on the necessity of URL encoding and its application in the Spring framework. By comparing the suitability of GET and POST requests, it explains in detail how to properly encode JSON data to avoid truncation during transmission. The article provides concrete code examples demonstrating URL encoding implementation and offers cross-language compatible alternatives, helping developers choose the optimal data transmission method based on actual requirements.

This article provides an in-depth exploration of how to send POST requests with raw data bodies using the Axios library in React applications. Starting from fundamental concepts, it thoroughly analyzes Axios's API structure and configuration methods, demonstrating through complete code examples how to properly set request headers, data bodies, and authentication information. Special attention is given to scenarios requiring raw data transmission such as plain text and MDX queries, offering multiple implementation solutions and best practice recommendations.