DiffGranularity

is an option to Diff and related functions that indicates with what granularity to compare the given expressions.

Details

	"Lists"	compare lists by item
	"Characters"	compare strings character by character
	"Words"	compare strings one word at a time
	"Lines"	compare strings or files one full line at a time
	"Cells"	compare one Cell with another
	"Notebooks"	compare one Notebook with another

The default setting of Automatic will choose an appropriate granularity for the given expressions.
The default granularity depends on the heads of the expressions being diffed:

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By default, strings are compared as a sequence of characters:

Use DiffGranularity to treat strings as a sequence of lines instead:

Use DiffGranularity to perform a diff of the raw text of notebook files, line by line:

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