价格格式和用户输入值来更改滑块

Question

我需要在哪里设置.toFixed（2）方法以对我的范围滑块输出进行固定格式设置？ 1.9 - > 1.90 2 - > 2.00

此外是有可能有其中用户将他的价格在（格式（GER）：0,00€）的输入字段，这将其转换为计算到0.00€并根据用户输入更改slidervalue？

非常感谢！

function outputUpdate(vol) { 
 
\t document.querySelector('#volume').value = vol; 
 
} 
 

 
function outputUpdate2(vol2) { 
 
\t document.querySelector('#volume2').value = vol2; 
 
} 
 

 

 
    function TKPJ(){ 
 
    \t \t var Field1 = document.getElementById('Field1').value; 
 
    \t \t var Field2 = document.getElementById('Field2').value; 
 
    \t \t var Field3 = document.getElementById('Field3').value; 
 
    \t \t var Format = document.getElementById('Format').value; 
 
    \t \t var Slider1 = document.getElementById('Slider1').value; 
 
    \t \t var Slider2 = document.getElementById('Slider2').value; 
 
\t \t \t var vol = document.getElementById('volume').value; 
 
\t \t \t var vol2 = document.getElementById('volume2').value; 
 
    \t \t var Total = ((Field1*Field2*Field3*Format*vol*vol2)/100).toFixed(2); 
 

 
    \t \t Total = Total.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ","); 
 
    \t \t document.getElementById('Total').innerHTML = "Cost per year = "+ Total +" €"; 
 

 

 

 

 

 
    }

<p>Field1</p> 
 
     \t \t \t   <input type="number" name="Field1" id="Field1" onkeyup="TKPJ()"> 
 
     \t \t \t  </div> 
 

 
       \t \t \t <p>Field2</p> 
 
       \t \t \t <input type="number" name="Field2" id="Field2" onkeyup="TKPJ()"> 
 

 
       \t \t \t <p>Field3</p> 
 
       \t \t \t <input type="number" name="Field3" id="Field3" onkeyup="TKPJ()"> 
 

 
       \t \t \t <select name="Format" id="Format" size="1" type="number" onchange="TKPJ()"> 
 
       \t \t \t \t \t <option value="1">Year</option> 
 
       \t \t \t \t \t <option value="12">Month</option> 
 
       \t \t \t \t \t <option value="365">Day</option> 
 
       \t \t \t \t </select> 
 

 
         <p>Slider1</p> 
 
         <input id="Slider1" type="range" min="0.20" max="5" step="0.01" value="1.50" oninput="outputUpdate(this.value)"> 
 
         
 
     <output for="Preisliter" id="volume"> 1.50 </output> 
 
         <br> 
 

 
         <p>Slider2</p> 
 
         <input id="Slider2" type="range" min="0.1" max="25" step="0.1" value="12.50" oninput="outputUpdate2(this.value)"> 
 
         
 
    <output for="Slider2" id="volume2"> 12.5 </output> 
 
    
 
          <h3 id="Total">Cost per year = 0,00€</h3>

Answer 1

你打电话.toFixed(2)之前，你必须分析的数量，这是编码为字符串。在你解析之后，你有号码对象并且可以正确呼叫.toFixed()方法

function outputUpdate2(vol2) { 
    document.querySelector('#volume2').value = parseFloat(vol2).toFixed(2); 
}