The TypeScript compiler is attempting to fetch node modules in the browser while compiling a single output file

After setting up my tsconfig file to build a frontend typescript application with a single output structure, I encountered an unexpected issue:

{
    "compilerOptions": {
        "target": "es5",
        "module": "system",
        "lib": [
            "es2015",
            "es2015.iterable",
            "dom"
        ],
        "sourceMap": true,
        "outFile": "output.js",
        "strict": true
    }
}

To load the output in the browser, I utilized <script> tags and incorporated systemjs [https://jspm.io/[email protected]], along with the snippet below for bootstrapping the application:

SystemJS.import("Application")
    .then((module) => {
        console.log(module);
    })
    .catch((error) => {
        console.error(error);
    });

Despite my expectation that all npm dependencies would be integrated into the output.js file during compilation, inspection revealed that the browser was attempting to load the lodash module from

https://registry.jspm.io/lodash.js

Answer №1

It is recommended to include all npm dependencies in the output.js file

This statement may not be entirely accurate. The Typescript compiler's output file typically only includes code specific to the project and may not automatically bundle imported modules. To create a bundled file for browser usage, it is advisable to use a bundler such as webpack.

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