Is there anyway to force using strict mode in Node.js?

Yes, there is a way to enforce strict mode in Node.js. Strict mode can be activated in several ways within a Node.js application:

1. File-Level Strict Mode: You can enable strict mode at the file level by adding the string "use strict"; at the top of your JavaScript files. This will apply strict mode to all the code within that file[1][2][3][4][8][10].

2. Function-Level Strict Mode: If you want to apply strict mode only to a specific function, you can place "use strict"; at the beginning of the function body. This will restrict strict mode only to the code within that function[3][8][10].

3. Global Strict Mode: For applications where you want the entire app to run in strict mode, including all external modules, you can start the Node.js process with the --use_strict flag. This will enforce strict mode globally across the entire application[1][4][7].

4. Using ESLint: While ESLint does not enforce strict mode at runtime, it can be configured to require strict mode in your codebase. If ESLint is integrated into your build and continuous integration (CI) process, it can ensure that only code adhering to strict mode is committed to your repository[1][5][9].

5. Module-Level Strict Mode: In ECMAScript modules (ESM), which use the import and export syntax, strict mode is enabled by default. However, as of Node.js version 6 and 8, Node.js uses CommonJS modules, which are not strict by default. If you are transpiling ESM to CommonJS using a tool like Babel, the transpiled code will not be in strict mode by default unless Babel is configured to ad...