Currency Converter
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Builds a currency converter in HTML5, CSS3, JavaScript, and a reliable exchange rate API — a clean interface with prominent input fields and currency selectors, live rates with a data-freshness timestamp, and support for 170+ world currencies.
Prompt content
Use HTML5、CSS3、JavaScript and reliable exchange rates API Development of integrated currency converters. Creates a clean, intuitive interface that contains prominent input fields and currency selectors. Real-time exchange rates are achieved by time stamp indicators showing the freshness of data. Support 170 Multiple global currencies, including encrypted currencies with appropriate symbols and formats. Maintenance of conversion history logs containing time stamp and rate information. Allows users to add bookmarks to the preferred currency for quick access. Generates interactive historical exchange rate charts with custom date ranges. Offline functionality is achieved using a cache of exchange rates and clear old targets. Adds a built-in calculator for complex conversions and algorithms. Create an exchange rate alert for the target exchange rate by optional notification. Includes parallel comparisons of different provider rates, if any. Multiple formats are supportedPDF、CSV、JSON）Prints and exports the conversion results.