December 2014
Intermediate to advanced
372 pages
7h 34m
English
Content preview from Pro Express.js
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APPENDIX B
Migrating Express.js 3.x to 4.x: Middleware, Route, and Other Changes
Express.js 4 (http://expressjs.com) is the latest (as of May 2014), major version of the most popular, mature, and robust Node.js framework for web apps, services, and APIs. There are some breaking changes in the transition from 3.x to 4.x, so this appendix serves as a brief migration guide, with coverage of the following:
- Introducing unbundled middleware in Express.js 4
- Removing deprecated methods from Express.js 4 apps
- Other Express.js 4 changes
- Exploring the new Express.js 4 route instance and how to chain it
- Further Express.js 4 migration reading links
Even ...
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