[rustc.git] / src / tools / clippy / src / docs / unnecessary_fold.txt

### What it does
Checks for using `fold` when a more succinct alternative exists.
Specifically, this checks for `fold`s which could be replaced by `any`, `all`,
`sum` or `product`.

### Why is this bad?
Readability.

### Example
```
(0..3).fold(false, |acc, x| acc || x > 2);
```

Use instead:
```
(0..3).any(|x| x > 2);
```
Commit	Line	Data
f2b60f7d FG	1	### What it does
	2	Checks for using `fold` when a more succinct alternative exists.
	3	Specifically, this checks for `fold`s which could be replaced by `any`, `all`,
	4	`sum` or `product`.
	5
	6	### Why is this bad?
	7	Readability.
	8
	9	### Example
	10	```
	11	(0..3).fold(false, \|acc, x\| acc \|\| x > 2);
	12	```
	13
	14	Use instead:
	15	```
	16	(0..3).any(\|x\| x > 2);
	17	```