Skip to main content
Module

std/node/internal/util/types.ts

Deno standard library
Go to Latest
File
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.//// Adapted from Node.js. Copyright Joyent, Inc. and other Node contributors.//// Permission is hereby granted, free of charge, to any person obtaining a// copy of this software and associated documentation files (the// "Software"), to deal in the Software without restriction, including// without limitation the rights to use, copy, modify, merge, publish,// distribute, sublicense, and/or sell copies of the Software, and to permit// persons to whom the Software is furnished to do so, subject to the// following conditions://// The above copyright notice and this permission notice shall be included// in all copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE// USE OR OTHER DEALINGS IN THE SOFTWARE.
import * as bindingTypes from "../../internal_binding/types.ts";export { isCryptoKey, isKeyObject } from "../crypto/_keys.ts";
const _toString = Object.prototype.toString;
const _isObjectLike = (value: unknown): boolean => value !== null && typeof value === "object";
export function isArrayBufferView(value: unknown): boolean { return ArrayBuffer.isView(value);}
export function isBigInt64Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object BigInt64Array]" );}
export function isBigUint64Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object BigUint64Array]" );}
export function isFloat32Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Float32Array]" );}
export function isFloat64Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Float64Array]" );}
export function isInt8Array(value: unknown): boolean { return _isObjectLike(value) && _toString.call(value) === "[object Int8Array]";}
export function isInt16Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Int16Array]" );}
export function isInt32Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Int32Array]" );}
// Adapted from Lodashexport function isTypedArray(value: unknown): boolean { /** Used to match `toStringTag` values of typed arrays. */ const reTypedTag = /^\[object (?:Float(?:32|64)|(?:Int|Uint)(?:8|16|32)|Uint8Clamped)Array\]$/; return _isObjectLike(value) && reTypedTag.test(_toString.call(value));}
export function isUint8Array(value: unknown): value is Uint8Array { return ( _isObjectLike(value) && _toString.call(value) === "[object Uint8Array]" );}
export function isUint8ClampedArray(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Uint8ClampedArray]" );}
export function isUint16Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Uint16Array]" );}
export function isUint32Array(value: unknown): boolean { return ( _isObjectLike(value) && _toString.call(value) === "[object Uint32Array]" );}
export const { // isExternal, isDate, isArgumentsObject, isBigIntObject, isBooleanObject, isNumberObject, isStringObject, isSymbolObject, isNativeError, isRegExp, isAsyncFunction, isGeneratorFunction, isGeneratorObject, isPromise, isMap, isSet, isMapIterator, isSetIterator, isWeakMap, isWeakSet, isArrayBuffer, isDataView, isSharedArrayBuffer, // isProxy, isModuleNamespaceObject, isAnyArrayBuffer, isBoxedPrimitive,} = bindingTypes;