15 Useful Javascript Libraries

This article explores 15 helpful JavaScript libraries streamlining common development tasks. These libraries offer pre-built functions for handling events, effects, and AJAX requests, often with readily available plugins to extend functionality.

Key Takeaways:

• The article details 15 JavaScript libraries simplifying tasks like form validation, animation, and URL manipulation. Examples include wForms, Validanguage, LiveValidation, JSTweener, Fx, Taffy DB, ActiveRecord.js, Sylvester, Pretty Date, JavaScript URL Library, Typeface.js, Amberjack, JsLoad, and a Custom JavaScript Dialog Boxes library.
• Each library possesses unique strengths. For instance, wForms simplifies form functions, Validanguage provides unobtrusive validation, and LiveValidation offers real-time field validation. JSTweener and Fx handle animations, while Taffy DB acts as a database layer for AJAX applications.
• The article addresses frequently asked questions, clarifying features, differentiating libraries, explaining usage, and highlighting potential limitations. For example, Validanguage's simplicity and flexibility, its broad rule support, and custom rule creation capabilities are emphasized. JSTweener's straightforward animation interface, diverse easing functions, and lack of dependencies are also highlighted.

1. wForms: An open-source, unobtrusive library simplifying common JavaScript form functions. Validation is easily implemented by adding class information to form elements.

2. Validanguage: An unobtrusive JavaScript form validation framework with inheritable settings configurable globally or per element.

3. LiveValidation: A lightweight library providing validation functions, including a powerful live validation feature for real-time feedback.

4. FormReform: This small library transforms standard forms into stylish one, two, or four-column layouts, automatically adapting to various designs.

5. JSTweener: A JavaScript tweening library with an API similar to ActionScript's Tweener engine.

6. Fx: A lightweight library (YUI-like syntax) creating tweens for almost any CSS property, including color and scroll animations.

7. Taffy DB: A JavaScript library functioning as an in-browser SQL database or advanced array manager, serving as a database layer for AJAX web applications.

8. ActiveRecord.js: Supports various platforms including Google Gears, Chrome, and those adhering to the W3C HTML5 SQL Specification, simplifying database interaction in JavaScript.

9. Sylvester: A JavaScript library for vector and matrix math, simplifying calculations without extensive looping.

10. Pretty Date: A JavaScript solution for displaying recent dates in a user-friendly format (e.g., "Yesterday," "3 hours ago").

11. JavaScript URL Library: A library for easier URL handling and manipulation, allowing string-based access and modification of URL components.

12. Typeface.js: An unobtrusive library for using any font on a website without Flash, using pure JavaScript.

13. Amberjack: A small JavaScript library (approx. 4KB) for creating visually appealing website tours using modal boxes.

14. JsLoad: A remote JavaScript library loading API, simplifying the import of large libraries from Google servers and automatically handling dependencies.

15. Custom JavaScript Dialog Boxes: A lightweight library (approx. 4.5KB) for creating custom alert, warning, prompt, and success dialog boxes.

(The Frequently Asked Questions section has been omitted for brevity, as it largely repeats information already presented above.)

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