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doc: improve examples

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This commit is contained in:
Samuel Berthe
2026-03-01 21:25:04 +01:00
parent ff0e293ce3
commit 6f42e74a11
3 changed files with 175 additions and 111 deletions
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README.md
+8 -5
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@@ -994,10 +994,13 @@ slice := lo.RepeatBy(5, func(i int) string {
With error handling:
```go
slice, err := lo.RepeatByErr(3, func(i int) (string, error) {
slice, err := lo.RepeatByErr(5, func(i int) (string, error) {
if i == 3 {
return "", fmt.Errorf("index 3 is not allowed")
}
return fmt.Sprintf("item-%d", i), nil
})
// []string{"item-0", "item-1", "item-2"}, <nil>
// []string(nil), error("index 3 is not allowed")
```
### KeyBy
@@ -3474,12 +3477,12 @@ min, index := lo.MinIndexBy([]string{}, func(item string, min string) bool {
```go
min, index, err := lo.MinIndexByErr([]string{"s1", "string2", "s3"}, func(item string, min string) (bool, error) {
if item == "" || min == "" {
return false, fmt.Errorf("empty string not allowed")
if item == "s2" {
return false, fmt.Errorf("s2 is not allowed")
}
return len(item) < len(min), nil
})
// "s1", 0, nil
// "s1", 0, error("s2 is not allowed")
```
### Earliest