Javascript require另一个require方法中的Method

Question

（有人可能会相应更改标题） 当javascript＆＃39; require方法被调用时，会发生什么：

var xyz = require('xy')(require('z'));

谢谢

Answer 1

无论z模块导出将作为参数传递给从xy导出的函数。

如果xy没有导出某个功能，那么您会收到错误

Answer 2

它的简称：

var xy  = require('xy');
var z   = require('z');
var xyz = xy(z);

Answer 3

var gulp = require('gulp-help')(require('gulp'));有效，因为require('gulp-help')会返回一个函数，然后将gulp导出的模块作为参数连同选项

像

require('gulp-help')(require('gulp'), options);

These are all the options available to be passed to the gulp-help instance, NOT individual tasks.

description - modifies the default help message
aliases - adds aliases to the default help task
hideEmpty - hide all tasks with no help message defined. Useful when including 3rd party tasks
hideDepsMessage - hide all task dependencies
afterPrintCallback - a function to run after the default help task runs

这是

的简短形式

var gulp-help = require('gulp-help');
var gulp = gulp-help(require('gulp'));