collectype

collectype v0.13.0

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collectype / factory/urls/urlHash / urlHashFactory

Function: urlHashFactory()

urlHashFactory<T, C>(ctx, oper): <K>(field, target) => C

Defined in: factory/urls/urlHash.ts:34

Creates a predicate filter for URL hash comparison using PredicType.url.hash.

Type Parameters

T

T

The item type in the collection.

C

C extends Wherable<T, C>

The Wherable context type (must extend Wherable<T, C>).

Parameters

ctx

C

The context (usually a collection) supporting the where method.

oper

UrlHashOper

The URL hash operation to perform.

Returns

Returns a function that takes a URL field on T, compares its hash, and filters the context.

<K>(field, target) => C

Example

// Example based on sample/models/Person and sample/data/person
import { BaseFunctions, urlHashFactory } from 'collectype';
import { Person } from '../../../sample/models/Person';
import { people } from '../../../sample/data/person';

class PersonFunctions extends BaseFunctions<Person> {
  urlHashEquals = urlHashFactory<Person, this>(this, 'equals');
}

const fn = new PersonFunctions(people);
const filtered = fn.urlHashEquals('website', '');
// filtered contains people whose website hash matches the target string

Remarks

• Only fields of type URL are supported.
• The operation and target must match the signature of PredicType.url.hash.
• Returns a new filtered context; does not mutate the original.

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