Visual Code beautifully showcases the detection of unused imports: https://i.sstatic.net/3sIfO.png
Could delegating the task of removing all unused imports in a moderately large Angular 7 project to a junior developer or intern result in more than just improving code organization?
Is there a chance that app size and performance could be enhanced as well by this cleanup process?
It ultimately depends on your personal preference. If you decide to keep them in and use angular AOT compilation, Tree Shaking will be performed. Additional information about this process can be found here (https://angular.io/guide/aot-compiler)
Another approach to discourage this practice is by activating the no-unused-variable setting in your tslint.json. This instructs your TypeScript Linter to disallow unused imports:
This rule prohibits the use of imports, variables, functions, and private class members that are not utilized. It is akin to tsc’s –noUnusedParameters and –noUnusedLocals options, but does not halt code compilation.
In my opinion, I would recommend implementing the tslint rule, running the linter, identifying any redundant references, and then deciding whether it is worthwhile to address all those lint errors.
Here are a couple of approaches for handling different phases:
To eliminate unused import variables, you can utilize the code editor feature. For example, vscode offers a functionality called run-code-actions-on-save
Add the following configuration to your vscode's settings.json file:
{
"[typescript]": {
"editor.codeActionsOnSave": {
"source.organizeImports": true
}
}
}
This will help in removing unnecessary import variables and organizing your import statements.
As mentioned by @mwilson, tools like tsc, aot compilation, or webpack can handle this task efficiently.
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