September 2022
Intermediate to advanced
585 pages
8h 17m
Chinese
Content preview from JavaScript 经典实例：第三版
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
512
｜
第
19
章
$ snapshot --source http://oreilly.com --file test.png
运行这个实用程序，传入
-h
或
--help
选项，你将看到如下内容。
Usage: snapshot [options]
Options:
-h, --help output usage information
-V, --version output the version number
-s, --source [website] Source website
-f, --file [filename] Filename
执行下述命令返回版本号。
$ snapshot -V
这些均由
Commander
模块自动生成，我们可以把注意力放在实用程序的主体功能上。
把命令行实用程序发布到
npm
注册处的方法与其他模块一样。
$ npm publish
19.6
让
Node
实例保持运行
19.6.1
问题
你想让生产环境中启动的
Node
应用一直运行下去，而且重新加载时不停机。
19.6.2
方案
使用
pm2
模块确保应用万一停止运行后自动重启。
$ pm2 start index.js
管理
Node
｜
513
19.6.3
讨论
pm2
是一个
CLI
工具，不仅可用于启动 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.