JavaScript has come a long way since its inception, and with the evolution of the language, modularity has become an essential part of writing clean, maintainable, and scalable code. In this blog post, we will discuss the require() function used in Ja
_compile = function (content, filename) { const wrapper = Module.wrap(content); // 获取包装后函数体 // vm是nodejs的虚拟机沙盒模块,runInThisContext方法可以接受一个字符串并将它转化为一个函数 // 返回值就是转化后的函数,所以compiledWrapper是一个函数 const compiledWrapper = vm.runInThisContext(...
requirejs.config({baseUrl:'/public/js',paths:{hello:'hello'},shim:{hello:{exports:'hello'}}});requirejs(['hello'],function(hello){hello();}); 上面代码 exports: 'hello' 中的 hello ,是我们在 hello.js 中定义的 hello 函数。当我们使用 function hello() {} 的方式定义一个函数的时候,它...
想用 c 模块的功能时，我只要在 require函数的依赖里指定 c：require(['c'], function(c) {...});至于 c 依赖的模块，c 依赖的模块的依赖模块… 等等，require.js 会帮打理。而传统的 script 办法，必须明确指定所有依赖顺序：12 传统的 script 方法里，极可能要靠记忆或者检查模块内容这种方式...
a.js: functionfun1(){alert("it works");}fun1(); 可能你更喜欢这样写 (function(){functionfun1(){alert("it works");}fun1();})() 第二种方法使用了块作用域来申明function防止污染全局变量,本质还是一样的,当运行上面两种例子时不知道你是否注意到,alert执行的时候,html内容是一片空白的,即body...
const products = {data:[]} function getData(){ return products.data; } Node REPL终端输入: require('./product.js') require函数能够加载这个product.js,不过不像内置模块一样,需要通过给路径来定位到js文件,如:require('./product') 或者 require('./product.js') ...
To run the code properly, you need to make sure that the required file returns a function. If you change theutil.jsexports as follows: functiongreet(greeting,name){return`${greeting},${name}!`;}module.exports=greet; Then therequire()function would work because it’s the same as calling...
Having leveraged RequireJS as part of my preferred client-side web stack for some time now, I find it rather surprising how often I recall various features from the API docs which I have yet to use, and how they may apply to a specific solution I am impl
The require() function accepts a string parameter that specifies the module's path. This could be −Core module: Node.js has various built-in modules. When the require() function receives a string parameter that does not begin with "./", "../", or "/", it assumes it is a core ...
// test.jsfunctiontest(){console.log(test); }export.test= test;// result.jsconsttest =require("./test") 这样也可以拿到正确的结果,这是因为:exports 变量指向 module.exports。这等同在每个模块头部,有一行这样的命令。 varexports=module.exports; ...