2.0.2 • Published 2 years ago
ts-util-is v2.0.2
ts-util-is
TypeScript typeof utility helper with no dependencies. Provides type guards for all common types.
Installation
npm install ts-util-is
Usage
Import everything:
import * as util from 'ts-util-is';
const value: string | string[] = 'hey there';
if (util.isArray(value)) {
console.log(value.split(' ')); // `value` is array type
}
Import only what you need:
import { isArray, isString } from 'ts-util-is';
const value: string | string[] = 'hello again';
if (isArray(value)) {
console.log(value.split(' ')); // `value` is array type
}
Methods
isArray()
isBase64()
isBoolean()
isDate()
isDateValid()
isDefined()
isError()
isFunction()
isGuid()
isInfinity()
isNull()
isNil()
isNumber()
isObject()
isPlainObject()
isRegExp()
isString()
isSymbol()
isUndefined()
isInstance()
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