How can one effectively avoid circular dependencies? This issue has been encountered in JavaScript, but it can also arise in other programming languages.
For instance, there is a module called translationService.ts where upon changing the locale, settings need to be reloaded (resulting in the need to import settingsService.ts). However, within the settingsService.ts, there is a function reloadSettings that relies on the translationService for translating error messages.
The ideal scenario would be for the translationService to have no knowledge of the settingsService. But how can this separation be achieved through code?
translationService.ts
import { reloadSettings } from '@/services/settingsService.ts'
// When the locale is changed, we want to reload the settings
const changeLocale = (locale: string) => {
i18n.locale = locale
reloadSettings()
}
However, in settingsService.ts, there exists a dependency on the translationService for displaying exceptions in the correct locale.
settingsService.ts
import settingsApi from '@/api/settingsApi.ts'
import { translate } from '@/services/translationService.ts'
const reloadSettings = () => {
try {
settingsStore.settings = settingsApi.getSettings()
} catch (error) {
console.log(
translate(error.message)
)
}
}
This results in a loop of dependencies where settingsService requires translationService and vice versa:
settingsService -> translationService -> settingsService