javascript-utility
A set of common JavaScript utility helper functions.
Installation
$ yarn add javascript-utility
or
$ npm i --save javascript-utility
API
Utility functions
-
isNumericString
Returnstrue
when its input is a numeric string andfalse
otherwise. -
isEmptyString
Returnstrue
when it's input is an empty string or contains only whitespace. -
notEmpty
Returnstrue
when its input is notnull
,undefined
or haslength
0. -
notNumericString
Returnstrue
when its input is not a numeric string andfalse
otherwise. -
isPositiveNumericString
Returnstrue
when its input is a positive numeric string and otherwise returnsfalse
. -
isEmpty
Returnstrue
when its input isnull
,undefined
, or haslength
0.
Utility creators
-
lengthMoreThan
Given a number, returns a function that returns true when that input has length more than that number and false otherwise. -
lengthLessThan
Given a number, returns a function that returns true when that input has length less than that number and false otherwise.
Helpers
-
not
Given a function that returns a boolean, returns a function that returns a boolean in the opposite cases.