对Node.js的各种疑惑，请大神进来把把脉

1. Node.js的在线手册对API的说明只是简短的描述，例如：http://nodemanual.org/0.8.0/nodejs_ref_guide/assert.html#assert.fail对assert.fail的说明。我如何得知assert.fail所有行为方式呢？

2. 接着上一问题，链接中提供了assert.fail的简单用法：

var assert = require('assert');

var iX = 4;
var iY = 5;

assert.fail(iX, iY, "iX is bigger than iY", "<");
// prints nothing, because it does not fail

assert.fail(iX, iY, "iX is bigger than iY", ">");
// prints a failure, because iX > iY is not true

但是我运行后的结果却与官方提供的不一致，运行得到结果：

assert.js:102
throw new assert.AssertionError({
^
AssertionError: iX is bigger than iY
at Object.<anonymous> (/private/tmp/test.js:6:8)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.runMain (module.js:492:10)
at process.startup.processNextTick.process._tickCallback (node.js:244:9)

以上信息是 assert.fail(iX, iY, "iX is bigger than iY", "<"); 打印出来的，明显与官方描述不符。并且官方文档对assert.fail的行为描述为：

Throws an exception that displays the values for actual and expected separated by the provided operator.

也就是说如论如何都会抛出一个异常，为什么给出的代码注释中却说：

assert.fail(iX, iY, "iX is bigger than iY", "<");
// prints nothing, because it does not fail

概括我的疑问：

1. assert.fail的所有行为方式是什么？
2. 从哪里获取某个API的详细说明？
3. 各位仁兄在遇到类似问题时如何解决的？