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Can you add description of every variable is default immutable?

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
45/100
Issue type
Documentation
Clarity
Mostly clear
Activity status
Stale
Tech stack
rust
Domain
documentation

Research direction

Locate the tutorial's loop example that uses all.iter_mut() and review the surrounding explanations of variables. Explain Rust's default immutability and why iter_mut() is needed in that example; done when a first-time reader can understand both points from the tutorial alone.

Written by the indexing model from the issue text.

Description

I feel like default immutable variable is not obvious to me when I first time read this tutorial. For example, I don’t see the reason why use all.iter_mut() in the loop example. Thanks in advance.

Dominant language
Rust
Stars
3.9k
Forks
297
PR merge metrics
No merged PRs in 30d

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