JSFiddle - React, Tailwind, and code Playground

JavaScript

function createComparisonFunction(propertyName) {

	return function(object1, object2){
		var value1 = object1[propertyName];
		var value2 = object2[propertyName];
			if (value1 < value2){
				return -1;
		} 
    	else if (value1 > value2){
				return -1;
		} 
    else {
			return 0;
		}
	};
}


var data = [{name: "Zachary", age: 28}, {name: "Nicholas", age: 29}];

data.sort(createComparisonFunction("name"));
alert(data[0].name); // Nicholas

data.sort(createComparisonFunction("age"));
alert(data[0].name); // Zachary