Currency Calculator v.1.1

Currency Converter App helps users to convert USD into another usable currency (RUB, CAD, or EUR) in just a moment. Based on current market exchange rates, app will calculate the currency's corresponding value of the entered amount of money.

Features:

• AJAX requests;
• JSON API for live exchange rates updates;
• HTML5, CSS3, JS(ES6).

Updates in v1.1 1/24/2019:

• Refresh rates function added;
• Cursor for the refresh button implemented;
• Currency labels transctipted;
• CSS styles tweaked to improve responsiveness;
• JS code refactored to fasten load and reduce length in 32%;
• JSON data from API stored when the page is loaded to fasten the access and reduce requests to server in five times.

Updates in v1.0 1/23/2019:

• JSON API integrated as live JSON exchange rates server;
• Localization realized for users to display the time that the rates were published;
• UNIX Timestamp value used for DateTime manipulation;
• Ruble sign converted in HTML Entity to improve cross-browser support;
• Date script in copyright field fixed.

Updates in beta 1/18/2019:

• Conversion expanded to CAD & EUR;
• Support to all directions of conversion realized;
• Fonts fixed;
• Icon & flexbox added;
• Cticky footer introduced;
• Art direction & resolution switching implemented;
• Updated local JSON server with stored exchange rate and update date;
• Optimized image breakpoints for background image introduced.

GTBD:

• optimize image breakpoints for retina displays;
• fix error message (after logical operator in requests)