JSFiddle - React, Tailwind, and code Playground

JavaScript

var app = app || {};

(function Math(x, math) {
		
    //LOCAL FUNCTIONS INSIDE MATH 
    function getMax(value) {
    	return math.max.apply(null,value);
    };
    
    function getMin(value) {
    	return math.min.apply(null,value);
    };
    
    //RETURN TO GLOBAL NAMESPACE
    	obj =  {
    	getMax : getMax,
      getMin : getMin
    }
    
    x.Math = obj;
    
})(app, Math)

var arr = [1,30,20,644,164,192,76];

console.log(app.Math.getMax(arr));
console.log(app.Math.getMin(arr));