@zerodep/guard-array NPM

@zerodep/guard-array

license

A run-time guard to require a value to be an array; it will throw a ZeroDepError if the guard fails.

Full documentation is available at the zerodep.app page.

Examples

All @zerodep packages support both ESM and CJS.

import { guardArray } from '@zerodep/guard-array';
// or
const { guardArray } = require('@zerodep/guard-array');

Successful Cases

guardArray([]); // void
guardArray(['a', 'b', 'c']); // void

Unsuccessful Cases

guardArray(1000n); // throws ZeroDepError: Value is not an array
guardArray(true); // throws ZeroDepError: Value is not an array
guardArray(new Date()); // throws ZeroDepError: Value is not an array
guardArray(''); // throws ZeroDepError: Value is not an array
guardArray(new Error('message')); // throws ZeroDepError: Value is not an array
guardArray(3.14); // throws ZeroDepError: Value is not an array
guardArray(() => 'function'); // throws ZeroDepError: Value is not an array
guardArray(42); // throws ZeroDepError: Value is not an array
guardArray(
  new Map([
    ['a', 1],
    ['b', 2],
  ])
); // throws ZeroDepError: Value is not an array
guardArray(null); // throws ZeroDepError: Value is not an array
guardArray({ an: 'object' }); // throws ZeroDepError: Value is not an array
guardArray(new Promise(() => {})); // throws ZeroDepError: Value is not an array
guardArray(/[regex]+/gi); // throws ZeroDepError: Value is not an array
guardArray(new Set([1, 2, 3])); // throws ZeroDepError: Value is not an array
guardArray('a string'); // throws ZeroDepError: Value is not an array
guardArray(Symbol()); // throws ZeroDepError: Value is not an array
guardArray(new Int32Array(2)); // throws ZeroDepError: Value is not an array
guardArray(undefined); // throws ZeroDepError: Value is not an array

ZeroDep Advantages

Zero npm dependencies - completely eliminates all risk of supply-chain attacks, decreases node_modules folder size
ESM & CJS - supports both ECMAScript modules and common JavaScript exports
Tree Shakable - built to be fully tree shakable ensuring your packages are the smallest possible size
Fully Typed - typescript definitions are provided/built-in to every package for a superior developer experience
Semantically Named - package and method names are easy to grok, remember, use, and read
Documented - actually useful documentation with examples at zerodep.app
Intelligently Packaged - multiple npm packages of different sizes available allowing a menu or a-la-carte composition of capabilities
100% Tested - all methods and packages are fully unit tested
Predictably Versioned - semantically versioned for peace-of-mind upgrading, valuable changelogs for understand changes
MIT Licensed - permissively licensed for maximum usability