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Open two files in Vim in vertical spilt screen mode (-O) with scrollbinding and diff highlighting on.

Let's use the following code as an example...

And let's say our cursor is that pipe between the two s's in 'message,' above.

Press v to enter visual mode, and then follow that with one of the following

to select text all code within the curly braces. In this case, that's the two $value assignment lines.

will select the word "message," as it is inside 's.

In Vim, given code such as

If you're on or within the parentheses and enter

you'll clear the $check out of there.

Same goes for

which would clear the 'true' out of the $array brackets.

And

would wipe away all the contents of the curly braces.