default | /lib/jsutils/isCollection.js | graphql_deno@v15.0.0

function default

import { default } from "https://dotland.deno.dev/x/graphql_deno@v15.0.0/lib/jsutils/isCollection.js";

default(obj)

Returns true if the provided object is an Object (i.e. not a string literal) and is either Iterable or Array-like.

This may be used in place of [Array.isArray()][isArray] to determine if an object should be iterated-over. It always excludes string literals and includes Arrays (regardless of if it is Iterable). It also includes other Array-like objects such as NodeList, TypedArray, and Buffer.

Examples

isCollection([ 1, 2, 3 ]) // true isCollection('ABC') // false isCollection({ length: 1, 0: 'Alpha' }) // true isCollection({ key: 'value' }) // false isCollection(new Map()) // true

Parameters

obj

An Object value which might implement the Iterable or Array-like protocols.