'How to prevent VS Code from auto-deleting tabs on an empty line?

When I use some tabs on a line without any text,VS Code always auto deletes my tabs.

How to prevent this VSCode action?

Here is the state



Solution 1:[1]

There is a checkbox option in VSCode settings called Editor: Trim Auto Whitespace and Files: Trim Trailing Whitespace

If you uncheck that then it should stop

Solution 2:[2]

Open VS Code Settings > Extensions > Dart&Flutter. Then uncheck "Dart:Enable SDK Formatter".

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Aad
Solution 2 Gino Mempin