webpack/examples/require.context/README.md

3.7 KiB

example.js

function getTemplate(templateName) {
	return require("./templates/"+templateName);
}
console.log(getTemplate("a"));
console.log(getTemplate("b"));

templates/

  • a.js
  • b.js
  • c.js

All templates are of this pattern:

module.exports = function() {
	return "This text was generated by template X";
}

js/output.js

/******/(function(modules) {
/******/	var installedModules = {};
/******/	function require(moduleId) {
/******/		if(typeof moduleId !== "number") throw new Error("Cannot find module '"+moduleId+"'");
/******/		if(installedModules[moduleId])
/******/			return installedModules[moduleId].exports;
/******/		var module = installedModules[moduleId] = {
/******/			exports: {}
/******/		};
/******/		modules[moduleId](module, module.exports, require);
/******/		return module.exports;
/******/	}
/******/	require.ensure = function(chunkId, callback) {
/******/		callback(require);
/******/	};
/******/	return require(0);
/******/})
/******/({
/******/0: function(module, exports, require) {

/******/ /* WEBPACK FREE VAR INJECTION */ (function(console) {
function getTemplate(templateName) {
	return require(/* ./templates */1)("./"+templateName);
}
console.log(getTemplate("a"));
console.log(getTemplate("b"));
/******/ /* WEBPACK FREE VAR INJECTION */ }(require(/* __webpack_console */2)))

/******/},
/******/
/******/1: function(module, exports, require) {

/***/module.exports = function(name) {
/***/	var map = {"./a.js":3,"./b.js":4,"./c.js":5};
/***/	return require(map[name]||map[name+""]||map[name+".webpack.js"]||map[name+".web.js"]||map[name+".js"]||name);
/***/};

/******/},
/******/
/******/2: function(module, exports, require) {

var console = window.console;
module.exports = console;
for(var name in {log:1, info:1, error:1, warn:1, dir:1, trace:1, assert:1})
	if(!console[name])
		console[name] = function() {};
if(!console.time)
console.time = function(label) {
	times[label] = Date.now();
};
if(!console.timeEnd)
console.timeEnd = function() {
	var duration = Date.now() - times[label];
	console.log('%s: %dms', label, duration);
};

/******/},
/******/
/******/3: function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template A";
}

/******/},
/******/
/******/4: function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template B";
}

/******/},
/******/
/******/5: function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template C";
}

/******/},
/******/
/******/})

Info

Uncompressed

Chunks: 1
Modules: 6
Modules including duplicates: 6
Modules pre chunk: 6
Modules first chunk: 6
     output.js:     2274 characters
output.js
    0 .\example.js
       main
    1 [context] .\templates
       context from .\example.js
    2 (webpack)\buildin\__webpack_console.js
       require (2x) from .\example.js
    3 .\templates\a.js
       context from .\example.js
    4 .\templates\b.js
       context from .\example.js
    5 .\templates\c.js
       context from .\example.js

Minimized (uglify-js, no zip)

Chunks: 1
Modules: 6
Modules including duplicates: 6
Modules pre chunk: 6
Modules first chunk: 6
     output.js:     1043 characters
output.js
    0 .\example.js
       main
    1 [context] .\templates
       context from .\example.js
    2 (webpack)\buildin\__webpack_console.js
       require (2x) from .\example.js
    3 .\templates\a.js
       context from .\example.js
    4 .\templates\b.js
       context from .\example.js
    5 .\templates\c.js
       context from .\example.js

Code Splitting

See this example combined with code splitting