Code
| Place the mouse cursor over an identifier in the editor. A tooltip shows the full signature of the element under cursor and the comment associated with the element's declaration (written above or the side).
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Folded regions
| Place the mouse cursor over the
+ sign of a folded code region. A tooltip shows the folded region contents.
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Problems
| Place the mouse cursor over an error or warning annotation on the left vertical ruler of the editor. A tooltip shows the error or warning message.
If you hover the squiggled identifier you will also see a tooltip including quick fix proposals.
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