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Selecting and Deleting Expressions

Selecting the Next-Higher Subexpression

Select the next-higher subexpression by pressing Ctrl+..
Press Ctrl+. repeatedly.
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Deleting to Destructure an Expression

Get rid of the contents of an expression and destructure it by pressing Del (or Backspace).
Press Backspace repeatedly.
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Another Example

Press Backspace repeatedly.
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Click for copyable input
Click for copyable input
Click for copyable input
Click for copyable input
Click for copyable input
Click for copyable input
Click for copyable input
Click for copyable input
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