如何從Javascript中的十進制數字中刪除零

Question

例如，如果計算是10/8 ，代碼應該回答1.25而不是1.250或者0/1應該是0而不是0.000 。 如何在 Javascript 中從十進制數字中刪除零，同時在點三（ .toFixed(3); ）之后仍然保持最大數量的數字（如果沒有零）

 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

我確信有一個更優雅的解決方案，但這有效：

 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>