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doc/next: improve new(expr) release note

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One reader pointed out that the example isn't compelling because
&age would have worked just as well. This CL changes the example
to use a nontrivial expression. Don't nitpick the arithmetic.

For #45624

Change-Id: Icc745f5ee7000c1d3559da1388c6a5596c4d1f46
Reviewed-on: https://go-review.googlesource.com/c/go/+/714040
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
This commit is contained in:
Alan Donovan 2025-10-22 17:56:32 -04:00 • committed by Gopher Robot
parent d94a8c56ad
commit 77fc27972a
1 changed files with 6 additions and 2 deletions
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8
doc/next/2-language.md
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@ -19,10 +19,14 @@ type Person struct {
Age *int `json:"age"` // age if known; nil otherwise
}
func personJSON(name string, age int) ([]byte, error) {
func personJSON(name string, born time.Time) ([]byte, error) {
return json.Marshal(Person{
Name: name,
Age: new(age),
Age: new(yearsSince(born)),
})
}
func yearsSince(t time.Time) int {
return int(time.Since(t).Hours() / (365.25 * 24)) // approximately
}
```