How can I format numbers in a specific way?

Question

I want to format my numbers and I want these results.

I have tried .toFixed(2) but it didn't yield the expected results.

Input     Result
50.000 => 50
50.900 => 50.9
50.940 => 50.94
50.941 => 50.94

Something like 0.## as formatting but in JavaScript.

Answer 1

 function decimalFunction() { console.log('click'); var myvalue = document.getElementById('myInput').value; var decimal = Math.round(myvalue * 100) / 100 document.getElementById('result').innerHTML = decimal; } 

 <input id="myInput" type="text"/> <button onclick="decimalFunction()">Submit</button> <div id="result"></div> 

Math.round(inputNumber * 100) / 100

Input: 50.000, 50.900, 50.940, 50.941

Output: 50, 50.9, 50.94, 50.94

Answer 2

You should be able to use

parseFloat(num.toFixed(2));

to

• have a maximum of two trailing digits
• omit any superfluous trailing zeros

Answer 3

change you number to string. After some string operations you can get correct result

<script language="Javascript">
    var data = 50.947;
    var res = data.toString().substring(0, data.toString().indexOf('.') + 3);
    alert(res);
</script>