every (Lodash Compatibility)

Use Array.prototype.every()

This every function operates slowly due to complex object processing, support for various condition formats, etc.

Instead, use the faster and more modern Array.prototype.every().

Checks if all values in an array or object meet the given condition.

const result = every(collection, predicate);

Reference

every(collection, predicate?)

Use every when you want to check if all elements in an array or object satisfy a specific condition. The condition can be specified in various formats such as a function, partial object, property-value pair, property name, etc.

import { every } from 'es-toolkit/compat';

// Using a test function
const numbers = [2, 4, 6, 8];
every(numbers, x => x % 2 === 0);
// Returns: true

// Using a property name
const users = [
  { name: 'Alice', active: true },
  { name: 'Bob', active: true },
];
every(users, 'active');
// Returns: true

// Using a partial object
every(users, { active: true });
// Returns: true

// Using a property-value pair
every(users, ['active', true]);
// Returns: true

It works the same way for objects.

import { every } from 'es-toolkit/compat';

const scores = { math: 90, english: 85, science: 92 };
every(scores, score => score >= 80);
// Returns: true

null or undefined are treated as empty collections and return true.

import { every } from 'es-toolkit/compat';

every(null);
// Returns: true

every(undefined);
// Returns: true

Parameters

• collection (ArrayLike<T> | Record<any, any> | null | undefined): The array or object to check.
• predicate (((item: T, index: number, collection: any) => unknown) | Partial<T> | [keyof T, unknown] | PropertyKey, optional): The condition to check. Can use a function, partial object, property-value pair, or property name. Defaults to the identity function.

Returns

(boolean): Returns true if all elements satisfy the condition, otherwise false.