stringjs

#### stringjs is a JavaScript library for performing various checks on a string.
#### You have the following functions:
- #### isUpper() => check is the following data is in full uppercase;
- #### isLower() => check is the following data is in full lowercase;
- #### match("lower") => check is the following data is in full lowercase;
- #### match("upper") => check is the following data is in full uppercase;
- #### match("lowerAndUpper") => check is the following data contains lower and uppercases;

#### How to install stringjs?

``bash
npm i stringjs
`

#### How to use stringjs?

`js
const { StringJS } = require("stringjs");

// OR

const { SJS } = require("stringjs");

// We'll use the SJS class

new SJS("myString").isLower(); // false
new SJS("myString").isUpper(); // false
new SJS("myString").match("lowerAndUpper"); // true
``