<Entries extends Array<readonly [string, any]>>(
...entries: Entries
): Trie<Entries[number] extends readonly [any, infer V] ? V : never>Constructs a new Trie from the specified entries ([string, V]).
Example (Constructing a trie from entries)
import { Equal, Trie } from "effect"
import * as assert from "node:assert"
const trie = Trie.make(["ca", 0], ["me", 1])
assert.deepStrictEqual(Array.from(trie), [["ca", 0], ["me", 1]])
assert.equal(
Equal.equals(Trie.fromIterable([["ca", 0], ["me", 1]]), trie),
true
)constructors
Source effect/Trie.ts:1453 lines
export const const make: <
Entries extends Array<readonly [string, any]>
>(
...entries: Entries
) => Trie<
Entries[number] extends readonly [any, infer V]
? V
: never
>
Constructs a new Trie from the specified entries ([string, V]).
Example (Constructing a trie from entries)
import { Equal, Trie } from "effect"
import * as assert from "node:assert"
const trie = Trie.make(["ca", 0], ["me", 1])
assert.deepStrictEqual(Array.from(trie), [["ca", 0], ["me", 1]])
assert.equal(
Equal.equals(Trie.fromIterable([["ca", 0], ["me", 1]]), trie),
true
)
make: <function (type parameter) Entries in <Entries extends Array<readonly [string, any]>>(...entries: Entries): Trie<Entries[number] extends readonly [any, infer V] ? V : never>Entries extends interface Array<T>Array<readonly [string, any]>>(
...entries: Entries extends Array<readonly [string, any]>entries: function (type parameter) Entries in <Entries extends Array<readonly [string, any]>>(...entries: Entries): Trie<Entries[number] extends readonly [any, infer V] ? V : never>Entries
) => interface Trie<in out Value>An immutable string-keyed map optimized for prefix lookup. Iteration yields
[key, value] pairs in key order, and update operations such as insert and
remove return new Trie values.
Example (Using a trie for prefix search)
import { Trie } from "effect"
// Create a trie with string-to-number mappings
const trie: Trie.Trie<number> = Trie.make(
["apple", 1],
["app", 2],
["application", 3],
["banana", 4]
)
// Get values by exact key
console.log(Trie.get(trie, "apple")) // Some(1)
console.log(Trie.get(trie, "grape")) // None
// Find all keys with a prefix
console.log(Array.from(Trie.keysWithPrefix(trie, "app")))
// ["app", "apple", "application"]
// Iterate over all entries (sorted alphabetically)
for (const [key, value] of trie) {
console.log(`${key}: ${value}`)
}
// Output: "app: 2", "apple: 1", "application: 3", "banana: 4"
// Check if key exists
console.log(Trie.has(trie, "app")) // true
// Get size
console.log(Trie.size(trie)) // 4
Trie<function (type parameter) Entries in <Entries extends Array<readonly [string, any]>>(...entries: Entries): Trie<Entries[number] extends readonly [any, infer V] ? V : never>Entries[number] extends readonly [any, infer function (type parameter) VV] ? function (type parameter) VV : never> = import TRTR.const make: <
Entries extends Array<readonly [string, any]>
>(
...entries: Entries
) => TR.Trie<
Entries[number] extends readonly [any, infer V]
? V
: never
>