如何从 Javascript 中的十进制数中删除零

Question

如果计算例如是 10/8 代码应该回答 1.25 而不是 1.250 或者 0/1 应该是 0 而不是 0.000.如何从 Javascript 中的十进制数字中删除零，同时仍保留点三 (.toFixed(3);)

之后的最大位数（如果没有零）

var operator = ['/'];

function F1() {    
    Z1 = document.getElementById("Z1");
    Z2 = document.getElementById("Z2");
    oper=document.getElementById("operator");
    answer=document.getElementById("answer");
     
    rZ1 = Math.floor((Math.random()*10));
    rZ2 = Math.floor((Math.random()*10)+1);
    op = operator[Math.floor(Math.random()*1)];
     
    Z1.innerHTML=rZ1; Z2.innerHTML=rZ2;
    oper.innerHTML=op;
    answer.innerHTML = eval(rZ1 + op + rZ2).toFixed(3);}

<button onclick="F1()"> New </button>
<p> <label id="Z1"> </label> 
    <label id="operator"> </label>
    <label id="Z2"> </label>
  = <label id="answer"> </label> </p>

Answer 1

我确定有更优雅的解决方案，但这个可行：

var operator = ['/'];

function F1() {    
    Z1 = document.getElementById("Z1");
    Z2 = document.getElementById("Z2");
    oper=document.getElementById("operator");
    answer=document.getElementById("answer");
     
    rZ1 = Math.floor((Math.random()*10));
    rZ2 = Math.floor((Math.random()*10)+1);
    op = operator[Math.floor(Math.random()*1)];
     
    Z1.innerHTML=rZ1; Z2.innerHTML=rZ2;
    oper.innerHTML=op;
    var blah = parseFloat(eval(rZ1 + op + rZ2).toFixed(3));
    if (blah.toFixed(2) == blah) {
      blah = parseFloat(blah.toFixed(2));
      if (blah.toFixed(1) == blah) {
        blah = parseFloat(blah.toFixed(1));
      }
    }
    answer.innerHTML = blah;}

<button onclick="F1()"> New </button>
<p> <label id="Z1"> </label> 
    <label id="operator"> </label>
    <label id="Z2"> </label>
  = <label id="answer"> </label> </p>

如何从 Javascript 中的十进制数中删除零

How to remove zeros from decimal numbers in Javascript

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