javascript 独立的断言库？
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standalone assertion libraries?
提问by user5321531
I was nearly through porting YUI assertion modules to standalone libraries when the thought popped into mind that I should have perhaps asked on StackOverflow if this was necessary first. However I finished the libs:
当我想到我应该先在 StackOverflow 上询问是否有必要时，我几乎将 YUI 断言模块移植到独立库中。但是我完成了库：
YUIPort: https://github.com/gso/YUIPort
YUIPort：https: //github.com/gso/YUIPort
But thought I would duly ask as well. Are there any good quality standalone libraries of assert functions - these can be very useful, e.g., checking the validity of arguments passed to functions (can save a lot of time invoking the debugger).
但我想我也会适时地问一下。是否有任何高质量的断言函数独立库 - 这些可能非常有用，例如，检查传递给函数的参数的有效性（可以节省调用调试器的大量时间）。
回答by user5321531
As of May 7, 2012
截至 2012 年 5 月 7 日
After some brief research, starting with the most minimalistic:
经过一些简短的研究，从最简约的开始：
- assert.js- port of node assert functions
- jShould- QUnit extension
- should.js- node library
- expect.js- based on should.js, standalone
- YUIPort- YUI libs but standalone
- chai- node and browser, plugins inc. for JQuery
- expectThat- CoffeeScript
- assert.js- 节点断言函数的端口
- jShould- QUnit 扩展
- should.js- 节点库
- expect.js- 基于 should.js，独立的
- YUIPort- YUI 库但独立
- chai- 节点和浏览器，插件公司。用于 JQuery
- expectThat- CoffeeScript
I have to admit that I do tend to agree with a commenter on DailyJS:
I don't understand why everyone likes these wordy assertion libraries.
我不明白为什么每个人都喜欢这些冗长的断言库。
Although I'm not a CoffeeScript user, I do tend to gravitate towards the plain assert.js style syntax rather than all this chaining.
尽管我不是 CoffeeScript 用户，但我确实倾向于使用简单的 assert.js 样式语法而不是所有这些链接。
Features that these libraries are developing include:
这些库正在开发的功能包括：
- plugable with the major test suites (saves having to switch between two libraries when coding)
- coding server-side (node) and client-side without changing libraries
- integration into the main web frameworks (e.g. JQuery)
- 可插入主要测试套件（无需在编码时在两个库之间切换）
- 在不更改库的情况下编码服务器端（节点）和客户端
- 集成到主要的 Web 框架中（例如 JQuery）
Some of the major test suites include:
一些主要的测试套件包括：
The major web frameworksoften include their own test suites.
在主要的Web框架通常包括他们自己的测试套件。
Logging wise, there is a discussion on libraries available. They don't, at a glance, seem to have caught up with server-side JS as of yet.
明智地记录日志，有关于可用库的讨论。乍一看，他们似乎还没有赶上服务器端 JS。
回答by Raynos
function assert(condition, message) {
if (!condition) throw new Error(message)
}
