如何删除我的 javascript 代码上的 onkeyup

Question

when i try to add a specific value with value="444" on the usd input it does not convert to the other value eth it's only working when i enter manually the amount.当我尝试在 usd 输入上添加value="444"的特定值时，它不会转换为其他值eth ，它仅在我手动输入金额时才起作用。 how can i convert when it's value already specified in the code当它的值已经在代码中指定时，我该如何转换

 <!DOCTYPE html> <html> <head> <style> </style> <script src="/scripts/snippet-javascript-console.min.js?v=1"></script> </head> <body> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <input type="number" name="eth" class="currencyField" placeholder="ETH"> <div class="arrow" style="margin: 0 10px";>=</div> <input type="number" name="usd" value="444" class="currencyField" value="" placeholder="USD"> </div><span id="price"></span> <script type="text/javascript"> $(".currencyField").keyup(function(){ //input[name='calc'] let convFrom; if($(this).prop("name") == "eth") { convFrom = "eth"; convTo = "usd"; } else { convFrom = "usd"; convTo = "eth"; } $.getJSON( "https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&ids=ethereum", function( data) { var origAmount = parseFloat($("input[name='" + convFrom + "']").val()); var exchangeRate = parseInt(data[0].current_price); let amount; if(convFrom == "eth") amount = parseFloat(origAmount * exchangeRate); else amount = parseFloat(origAmount/ exchangeRate); $("input[name='" + convTo + "']").val(amount.toFixed(2)); price.innerHTML = amount }); }); </script> </body> </html>

Answer 1

Try this尝试这个

   <script type="text/javascript">
      $(document).ready(function () {
        function getJSONData() {
          if ($(this).prop("name") == "eth") {
            convFrom = "eth";
            convTo = "usd";
          } else {
            convFrom = "usd";
            convTo = "eth";
          }
          $.getJSON("https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&ids=ethereum", function (data) {
            var origAmount = parseFloat($("input[name='" + convFrom + "']").val());
            var exchangeRate = parseInt(data[0].current_price);
            let amount;
            if (convFrom == "eth") amount = parseFloat(origAmount * exchangeRate);
            else amount = parseFloat(origAmount / exchangeRate);
            $("input[name='" + convTo + "']").val(amount.toFixed(2));
            price.innerHTML = amount;
          });
        }

        getJSONData();

        $(".currencyField").keyup(function () {
          //input[name='calc']

          getJSONData();
        });
      });
    </script>

First of all, you must change the function out of keyup , because we don't do it.首先，您必须将函数从keyup中更改出来，因为我们不这样做。 The function works when you enter value.该功能在您输入值时起作用。

如何删除我的 javascript 代码上的 onkeyup

问题描述

1 个解决方案

解决方案1
0 2022-06-25 11:31:52

如何删除我的 javascript 代码上的 onkeyup

问题描述

1 个解决方案

解决方案1 0 2022-06-25 11:31:52

解决方案1
0 2022-06-25 11:31:52