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This paper thoroughly explores various methods to implement visibility: hidden functionality in jQuery, analyzes the implementation principles of custom plugins, compares differences with display: none, and provides complete code examples and performance optimization suggestions. Through detailed implementation steps and practical application scenario analysis, it helps developers better understand the essence of CSS visibility control.

This article provides an in-depth exploration of various methods to execute JavaScript functions using string names, focusing on window object access, namespace function handling, and secure execution strategies. Through detailed code examples and performance comparisons, it demonstrates how to safely and efficiently implement dynamic function calls, avoid security risks associated with eval, and offers complete solutions for different scenarios.