CODEWITHSUNDEEP
javascriptnumber-formatting
Reza
Reza

Reputation: 19843

How can I format numbers in a specific way?

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.

Upvotes: 0

Views: 72

Answers (3)

Ramin Darvishov
Ramin Darvishov

Reputation: 1039

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>

Upvotes: 0

indubitablee
indubitablee

Reputation: 8206

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

Upvotes: 1

m90
m90

Reputation: 11812

You should be able to use

parseFloat(num.toFixed(2));

to

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

Upvotes: 1

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