Data-type-check NPM

data-type-check

data-type-check includes some basic data type function to simplify coding

install

npm instsall data-type-check

usage

data-type-check include 2 parts: base and extend. base provide basic js data type check and extend provide some extend data type check

const {base, extend}=require('dataTypeCheck')
base.isArray(value)
check value is regular array or not. Use ES6 internal function Array.isArray(). return boolean(object return false).
base.isObject(value)
check value is regular object or not, return boolean(Null return false).
base.isString(value)
check value is string or not, return boolean
base.isDate(value)
check string value can be convert to date or not, return boolean
base.isInt(value)
check value is integer or not. Use ES6 internal function Number.isInteger(). return boolean.
base.isFloat(value)
check value is float or not. return boolean.
base.isBoolean(value)
check value is boolean or not. return boolean.
base.isRegExp(value)
check value is RegExp or not. return boolean. Not use value instanceof RegExp since synax when handle string link 'C:\'

extend.isSetValue(value) check value is undefined/null or not. return boolean.
extend.isEmpty(value) check value: if is undefined/null, return true; if array with zero element([]), return true; if string "", return true;if object with zero key({}), return true; other return false.
extend.isNumberPositive(value)
check value is positive, value must be number. return boolean.
extend.isNumberNegative(value)
check value is negative, value must be number. return boolean.
extend.isFolder(value)
check value is folder. return boolean.
extend.isFile(value)
check value is file. return boolean.
extend.isFileReadable(value)
check value is file and readable. return boolean.