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@@ -0,0 +1,64 @@
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+async function fetchCurrency() {
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+ try {
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+ const response = await fetch(
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+ "https://api.coingecko.com/api/v3/exchange_rates"
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+ );
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+ const currency = await response.json();
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+ return currency.rates;
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+ } catch (error) {
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+ console.error(error);
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+ }
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+}
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+
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+async function renderCurrency() {
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+ const currencies = await fetchCurrency();
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+ const curArray = [];
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+ for (let key in currencies) {
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+ curArray.push(key);
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+ }
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+ let firstSelect = document.querySelector("#firstSelect");
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+ for (let i = 0; i < curArray.length; i++) {
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+ let option = document.createElement("option");
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+ option.setAttribute("value", curArray[i]);
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+ option.innerHTML = currencies[curArray[i]]["name"];
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+ firstSelect.appendChild(option);
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+ }
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+ return currencies;
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+}
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+
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+renderCurrency();
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+
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+async function convert() {
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+ const objCur = await renderCurrency();
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+ const curArray = [];
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+ for (let key in objCur) {
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+ curArray.push(key);
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+ }
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+ let currency1 = document.querySelector("#firstCurrency");
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+ let currency2 = document.querySelector("#secondCurrency");
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+ let value1 = document.querySelector("#firstInput");
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+ let value2 = document.querySelector("#secondInput");
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+ if (currency1.value === currency2.value) {
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+ value2.value = value1.value;
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+ }
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+ if (currency2.value === "btc"s) {
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+ value2.value = objCur[currency1.value]["value"];
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+ }
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+ if (currency1.value !== currency2.value) {
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+ value2.value =
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+ (value1.value ** 2 * objCur[currency2.value]["value"]) /
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+ (value1.value / (1 / objCur[currency1.value]["value"]));
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+ }
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+ currency1.disabled = true;
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+ currency2.disabled = true;
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+ value1.disabled = true;
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+ let divButton = document.querySelector(".buttonBox");
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+ divButton.firstChild.remove();
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+ let reloadButton = document.createElement("button");
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+ reloadButton.className = "btn btn-outline-secondary btn-lg";
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+ reloadButton.innerText = "Try again";
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+ divButton.appendChild(reloadButton);
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+ reloadButton.onclick = function () {
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+ window.location.reload();
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+ };
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+}
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