Go API

tmuxq.ExactlyOne

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Module: tmuxq
Package: github.com/libtmux/libtmux-go/tmux
Source: tmuxq/query.go

ExactlyOne ( values : []T , predicate : func(*T) bool ) → (T, error) function [source] ¶ function [source] ¶ ExactlyOne

ExactlyOne returns a shallow copy when exactly one source-ordered value is accepted by predicate. It examines values until source exhaustion confirms a sole match, or stops at the second match. It returns the zero value of T with ErrNoMatch for no matches or ErrMultipleMatches for multiple matches; callers can classify either error with errors.Is.

Discussed in Filtering and querying, in practice

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