mirror of
https://github.com/rjNemo/underscore
synced 2026-06-08 11:36:42 +00:00
Ruidy
bcb4dd1e9d
Add comprehensive documentation for all new functions: - TakeWhile: take elements while predicate is true - DropWhile: drop elements while predicate is true - Scan: running accumulator (prefix scan) - First/FirstN: get first element(s) safely - Init: all but last element - Intersperse: insert separator between elements - Sliding: sliding window views - FoldRight: right-to-left fold/reduce - Tap: side effects without mutation - Transpose: flip matrix rows/columns - Unzip: split tuples into separate slices - ParallelReduce: parallel reduction (experimental) - Replicate: create n copies of a value Each doc includes: - Clear description - Code examples with output - Common use cases - Edge case handling 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
505 B
505 B
| title | date |
|---|---|
| First | 2025-01-16T00:00:00-00:00 |
First returns the first element of the slice. Returns an error if the slice is empty.
package main
import (
"fmt"
u "github.com/rjNemo/underscore"
)
func main() {
nums := []int{1, 2, 3, 4, 5}
first, err := u.First(nums)
if err != nil {
panic(err)
}
fmt.Println(first) // 1
// Handle empty slice
empty := []int{}
_, err = u.First(empty)
if err != nil {
fmt.Println("Error:", err) // Error: underscore: empty slice
}
}