grantcarthew / js-assert-type

Common JavaScript type assertions.

JavaScript Assert Type

A simple JavaScript type assertion or type testing module.

Usage

import * as assertType from "https://raw.githubusercontent.com/grantcarthew/js-assert-type/v1.0.0/index.js"

assertType.isDate(new Date()) // true
assertType.isDate([]) // false

console.log

Functions

Following is the list of available assert functions:

• isUndefined
• isNull
• isObject
• isObjectOrArray
• isFunction
• isAsyncFunction
• isGeneratorFunction
• isGenerator
• isString
• isNan
• isNumber
• isInteger
• isBigInt
• isInfinity
• isBoolean
• isTrue
• isFalse
• isDate
• isDateObject
• isDateString
• isUuid
• isArray
• isInt8Array
• isUint8Array
• isUint8ClampedArray
• isInt16Array
• isUint16Array
• isInt32Array
• isUint32Array
• isFloat32Array
• isFloat64Array
• isBigInt64Array
• isBigUint64Array
• isArrayBuffer
• isSharedArrayBuffer
• isError
• isRegExp
• isSymbol
• isMap
• isWeakMap
• isSet
• isWeakSet
• isDataView
• isPromise

Testing

Install Deno and then type the following command from inside the code directory:

deno test