I realize there may be beginners looking to organize their code. This is 2022, and if you’re considering a modular JS app, you should get started with npm and Webpack right now. Here are a few simple steps to get started: In your project root, run npm init -y to initialize an npm project Download … Read more
You can use the define plugin. I use it by doing something as simple as this in your webpack build file where env is the path to a file that exports an object of settings: // Webpack build config plugins: [ new webpack.DefinePlugin({ ENV: require(path.join(__dirname, ‘./path-to-env-files/’, env)) }) ] // Settings file located at `path-to-env-files/dev.js` … Read more
If it’s for a (few) specific extension(s), you can add your own require.extensions handler: var fs = require(‘fs’); require.extensions[‘.txt’] = function (module, filename) { module.exports = fs.readFileSync(filename, ‘utf8’); }; var words = require(“./words.txt”); console.log(typeof words); // string Otherwise, you can mix fs.readFile with require.resolve: var fs = require(‘fs’); function readModuleFile(path, callback) { try { var … Read more
For me, when I do Immediately invoked function, I need to put ; at the end of require(). Error: const fs = require(‘fs’) (() => { console.log(‘wow’) })() Good: const fs = require(‘fs’); (() => { console.log(‘wow’) })()
It was deemed a “security” risk. You can get around it by using absolute paths File.expand_path(__FILE__) et al or doing require ‘./filename’ (ironically). or by using require_relative ‘filename’ or adding an “include” directory ruby -I . … or the same, using irb; $irb -I .
From “User Script Tip: Using jQuery – Erik Vold’s Blog” // ==UserScript== // @name jQuery For Chrome (A Cross Browser Example) // @namespace jQueryForChromeExample // @include * // @author Erik Vergobbi Vold & Tyler G. Hicks-Wright // @description This userscript is meant to be an example on how to use jQuery in a userscript on … Read more
require will throw a PHP Fatal Error if the file cannot be loaded. (Execution stops) include produces a Warning if the file cannot be loaded. (Execution continues) Here is a nice illustration of include and require difference: From: Difference require vs. include php (by Robert; Nov 2012)
Regarding the error itself, let is used to declare local variables that exist in block scopes instead of function scopes. It’s also more strict than var, so you can’t do stuff like this: if (condition) { let a = 1; … let a = 2; } Also note that case clauses inside switch blocks don’t … Read more
I just tried and it works with require “./tokenizer”. Hope this helps.
Try to set properties on module.exports, instead of replacing it completely. E.g., module.exports.instance = new ClassA() in a.js, module.exports.ClassB = ClassB in b.js. When you make circular module dependencies, the requiring module will get a reference to an incomplete module.exports from the required module, which you can add other properties latter on, but when you … Read more