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https://github.com/rjNemo/underscore
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Ruidy
3617c2de8f
Document that Last panics on empty slices with a clear error message. Add examples for single element and empty slice cases. Related to Issue 13 (PR #41) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
31 lines
505 B
Markdown
31 lines
505 B
Markdown
---
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title: "First"
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date: 2025-01-16T00:00:00-00:00
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---
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`First` returns the first element of the slice. Returns an error if the slice is empty.
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```go
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package main
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import (
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"fmt"
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u "github.com/rjNemo/underscore"
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)
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func main() {
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nums := []int{1, 2, 3, 4, 5}
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first, err := u.First(nums)
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if err != nil {
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panic(err)
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}
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fmt.Println(first) // 1
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// Handle empty slice
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empty := []int{}
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_, err = u.First(empty)
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if err != nil {
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fmt.Println("Error:", err) // Error: underscore: empty slice
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}
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}
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```
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