Computers - What is the difference, if any, of the resulting code logic based on these two provider configurations? ```ts [{ provide: FormattedLogger, useClass: Logger }][{ provide: FormattedLogger, useExisting: Logger }]; ```

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What is the difference, if any, of the resulting code logic based on these two provider configurations?

[{ provide: FormattedLogger, useClass: Logger }][{ provide: FormattedLogger, useExisting: Logger }];

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