What does the “M” after the mini program app.js mean?

Q: What does the M after the mini program js file stand for?
What does the M after the mini program js file stand for? Why do some have this logo after them, while others do not?
A:
Git version management
In order to facilitate developers to manage code versions more easily and quickly, simplify some common Git operations, and reduce the learning cost of using code version management, the developer tools integrate the Git version management panel.

A: Additional files.
C: A new copy of the file.
D: A deleted file.
M: The file's content or mode has been modified.
R: The file name has been modified.
T: The file type has been changed.
U: The file has not been merged (you need to complete the merge before you can commit)
X: Unknown status. (It is likely that you have encountered a git bug. You can submit a bug report to git)
A:
Indicates that this file has been modified
U File is not tracked (Untracked)
A New file (Added, Staged)
M The file has been modified (Modified)
+M The file has been modified (Modified, Staged)

C file conflicts
D The file is deleted (Deleted)

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