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Rooted by: Value Added Tax (VAT) and Luxury tax
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  • Description

    handle case when there is a decimal expected (e.g. 101 -> 111.1)

     Code 
    function finalPrice(price) {
  const vat = 0.1;
  const lux = 0.3;
  const luxThreshold = 1000;
  
  const extra = price >= luxThreshold ? lux : 0;
  return Number.parseFloat(price * (1 + vat + extra)).toFixed(2);
}
     Preloaded Code 
    function finalPrice(price) {
//good luck
}
     Test Cases 
    const chai = require("chai");
const assert = chai.assert;
const Test = require("@codewars/test-compat");

describe("Solution", function() {
  it("Final Price", function() {
    assert.equal(finalPrice(100), 110);
    assert.equal(finalPrice(100), 110);
    assert.equal(finalPrice(1000), 1400);
    assert.equal(finalPrice(900), 990);
    assert.equal(finalPrice(2000), 2800);
    assert.equal(finalPrice(101), 111.1); 
  });
});
    View Run Output
  • Code
    • function finalPrice(price) {
    • const vat = 0.1;
    • const lux = 0.3;
    • const luxThreshold = 1000;
    • const extra = price >= luxThreshold ? lux : 0;
    • return Math.round(price * (1 + vat + extra));
    • return Number.parseFloat(price * (1 + vat + extra)).toFixed(2);
    • }
     Test Cases
    • const chai = require("chai");
    • const assert = chai.assert;
    • const Test = require("@codewars/test-compat");
    • describe("Solution", function() {
    • it("Final Price", function() {
    • assert.equal(finalPrice(100), 110);
    • assert.equal(finalPrice(100), 110);
    • assert.equal(finalPrice(1000), 1400);
    • assert.equal(finalPrice(900), 990);
    • assert.equal(finalPrice(2000), 2800);
    • assert.equal(finalPrice(2000), 2800);
    • assert.equal(finalPrice(101), 111.1);
    • });
    • });