every (for Maps)
Tests whether all entries in a Map satisfy the provided predicate function.
typescript
const allMatch = every(map, doesMatch);INFO
This function is available exclusively from es-toolkit/map to avoid potential conflicts with similar functions for other collection types.
Usage
every(map, doesMatch)
Use every when you want to check if all entries in a Map meet a specific condition. Provide a predicate function that tests each entry, and it returns true if the predicate is satisfied for all entries, and false otherwise.
typescript
import { every } from 'es-toolkit/map';
const map = new Map([
['a', 10],
['b', 20],
['c', 30],
]);
const result = every(map, value => value > 5);
// Result: true
const result2 = every(map, value => value > 15);
// Result: falseYou can test various conditions.
typescript
import { every } from 'es-toolkit/map';
// Check if all values meet criteria
const inventory = new Map([
['apple', { quantity: 10, inStock: true }],
['banana', { quantity: 5, inStock: true }],
['orange', { quantity: 8, inStock: true }],
]);
const allInStock = every(inventory, item => item.inStock);
// Result: true
// Check if all keys match pattern
const settings = new Map([
['api.timeout', 5000],
['api.retries', 3],
['api.host', 'localhost'],
]);
const allApiSettings = every(settings, (value, key) => key.startsWith('api.'));
// Result: trueParameters
map(Map<K, V>): The Map to test.doesMatch((value: V, key: K, map: Map<K, V>) => boolean): A predicate function that tests each entry.
Returns
(boolean): true if all entries satisfy the predicate, false otherwise.