Hashtbl.S(3)

💖 NAME 💖

Okay bestie, welcome to Hashtbl.S(3) from the OCaml library manual ✨ This page is literally the output signature of the functor Hashtbl.Make, periodt.

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🧚 Module type 🧚

This is the Module type entry for Hashtbl.S, and it's giving signature-only main character energy 🎀

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✨ Documentation ✨

🌸 Module type S 🌸

Here's the shape of it, exactly as written:

Module type S
 = sig end

No cap, that's the whole signature shell. Now for the types and values inside, in the same order as the source, with every Since note kept safe and sound 💅

• type key — the key type, obvs 🔑
• type !'a t — the table type, with that ! right where it belongs 💖
• val create : int -> 'a t — the create signature, exactly as written ✨
• val clear : 'a t -> unit — the clear signature, exactly as written 🧹
• val reset : 'a t -> unit — the reset signature, exactly as written 🔄
  • Since 4.00
• val copy : 'a t -> 'a t — the copy signature, exactly as written 🎀
• val add : 'a t -> key -> 'a -> unit — the add signature, exactly as written ➕
• val remove : 'a t -> key -> unit — the remove signature, exactly as written 🗑️
• val find_and_remove : 'a t -> key -> 'a option — the find_and_remove signature, exactly as written 🔍
  • Since 5.5
• val find : 'a t -> key -> 'a — the find signature, exactly as written 🕵️
• val find_opt : 'a t -> key -> 'a option — the find_opt signature, exactly as written 🫶
  • Since 4.05
• val find_all : 'a t -> key -> 'a list — the find_all signature, exactly as written 📋
• val replace : 'a t -> key -> 'a -> unit — the replace signature, exactly as written 🔁
• val find_and_replace : 'a t -> key -> 'a -> 'a option — the find_and_replace signature, exactly as written 🦋
  • Since 5.5
• val mem : 'a t -> key -> bool — the mem signature, exactly as written ✅
• val iter : (key -> 'a -> unit) -> 'a t -> unit — the iter signature, exactly as written 🔂
• val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit — the filter_map_inplace signature, exactly as written 🧚
  • Since 4.03
• val fold : (key -> 'a -> 'acc -> 'acc) -> 'a t -> 'acc -> 'acc — the fold signature, exactly as written 🌀
• val length : 'a t -> int — the length signature, exactly as written 📏
• val stats : 'a t -> Hashtbl.statistics — the stats signature, exactly as written 📊
  • Since 4.00
• val to_seq : 'a t -> (key * 'a) Seq.t — the to_seq signature, exactly as written 🌈
  • Since 4.07
• val to_seq_keys : 'a t -> key Seq.t — the to_seq_keys signature, exactly as written 🔑
  • Since 4.07
• val to_seq_values : 'a t -> 'a Seq.t — the to_seq_values signature, exactly as written 💎
  • Since 4.07
• val add_seq : 'a t -> (key * 'a) Seq.t -> unit — the add_seq signature, exactly as written ➕
  • Since 4.07
• val replace_seq : 'a t -> (key * 'a) Seq.t -> unit — the replace_seq signature, exactly as written 🔁
  • Since 4.07
• val of_seq : (key * 'a) Seq.t -> 'a t — the of_seq signature, exactly as written 🎁
  • Since 4.07

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Catch you later, bestie — signed off by OCamldoc, dated 2026-06-22, under the Hashtbl.S(3) title 💅✨