It allows you to specify the base path for all the assets within your application. stringify (process. plugins: [ new webpack. Building Better Bundles: Why process 用法. You are here: Home / Uncategorized / webpack process env node_env undefined 当您指定时config.target（请参阅config.target）; 当您通过定义process.env变量时DefinePlugin; 查看您的代码，看起来process.env可能是 undefined when both options.prerenderand options.minimizeare false。. webpack process env node_env undefined Runtime error appeared after updating to webpack 5. TypeError: … Use undefined for variables that must be provided during bundling, or null if they are optional. If an environment variable is not found during bundling and no default value was provided, webpack will throw an error instead of a warning. So wondering what I'm … 查看环境变量. JavaScriptは、プログラミング言語のひとつです。. webpack yarn install dotenv-webpack --dev OR npm install dotenv-webpack --save-dev This plugin is to read the environment variables from the .env file securely by only exposing the … Currently, mode only sets the value for NODE_ENV in the DefinePlugin but not changes the process.env.NODE_ENV. 但是process.env中並不存在NODE_ENV這個東西。. DefinePlugin NODE_ENV not visible to babel-loader - GitHub NODE_ENV是用户一个自定义的变量，在webpack中它的用途是判断生产环境或开发环境的依据的。.