基于javascript货币实时汇率在线转换器代码

所属分类：网页特效-实用工具 2023-12-08 11:57:11

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资源描述：一款各国货币汇率转换器。可选择两种不同的货币，然后输入金额，即可快速在线查看当前汇率。该工具基于第三方网站API接口，获取的都是实时汇率数据。

基于javascript货币实时汇率在线转换器代码（共3个文件）

js
- script.js
css
- style.css

index.html

使用方法

code
source

const currency_1 = document.getElementById("currency-1");
const amountOne = document.getElementById("amount-one");
const currency_2 = document.getElementById("currency-2");
const amountTwo = document.getElementById("amount-two");

const rateE1 = document.getElementById("rate");
const swap = document.getElementById("swap");

//Calculate Rates
function calculate() {
  let currency_One = currency_1.value;
  let currency_Two = currency_2.value;

  fetch(`https://api.exchangerate-api.com/v4/latest/${currency_One}`)
    .then((res) => res.json())
    .then((data) => {
      const rate = data.rates[currency_Two];

      rateE1.innerHTML = `1 ${currency_One} = ${rate} ${currency_Two} `;
      amountTwo.value = (rate * amountOne.value).toFixed(2);
    });
}

//Event Listensers
currency_1.addEventListener("change", calculate);
amountOne.addEventListener("input", calculate);
currency_2.addEventListener("change", calculate);
amountTwo.addEventListener("input", calculate);

swap.addEventListener("click", () => {
  const temp = currency_1.value;
  currency_1.value = currency_2.value;
  currency_2.value = temp;

  amountOne.value = amountTwo.value;
  calculate();
});

calculate();

const currency_1 = document.getElementById("currency-1");
const amountOne = document.getElementById("amount-one");
const currency_2 = document.getElementById("currency-2");
const amountTwo = document.getElementById("amount-two");

const rateE1 = document.getElementById("rate");
const swap = document.getElementById("swap");

//Calculate Rates
function calculate() {
  let currency_One = currency_1.value;
  let currency_Two = currency_2.value;

  fetch(`https://api.exchangerate-api.com/v4/latest/${currency_One}`)
    .then((res) => res.json())
    .then((data) => {
      const rate = data.rates[currency_Two];

      rateE1.innerHTML = `1 ${currency_One} = ${rate} ${currency_Two} `;
      amountTwo.value = (rate * amountOne.value).toFixed(2);
    });
}

//Event Listensers
currency_1.addEventListener("change", calculate);
amountOne.addEventListener("input", calculate);
currency_2.addEventListener("change", calculate);
amountTwo.addEventListener("input", calculate);

swap.addEventListener("click", () => {
  const temp = currency_1.value;
  currency_1.value = currency_2.value;
  currency_2.value = temp;

  amountOne.value = amountTwo.value;
  calculate();
});

calculate();

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