Converting decimal to hexa

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examples/js/hexa.js

"use strict";

var a = 16;
console.log(a.toString(16)); // 10

var b = 129;
console.log(b.toString(16)); // 81

var a = 190;
console.log(a.toString(16)); // be

var a = 190;
console.log(a.toString(16).toUpperCase()); // BE