/**
 * Collection of utility functions that are deprecated in nodes util.
 */ /**
 * Replaces node isNullOrUndefined.
 */ export function isNullOrUndefined ( value ) { return value === undefined || value === null ; } /**
 * Replaces node isString.
 */ export function isString ( value ) { return typeof value === 'string' ; } /**
 * Replaces node isBoolean.
 */ export function isBoolean ( value ) { return typeof value === 'boolean' ; } /**
 * Replaces node isNumber.
 */ export function isNumber ( value ) { return typeof value === 'number' ; } /**
 * Replaces node isArray.
 */ export function isArray ( value ) { return Array . isArray ( value ) ; }