JavaScript Number toFixed() method

JavaScript: Number toFixed() method; In this tutorial, You will learn how to use the number method called toFixed with new examples. And as well as learn how to number tofixed without rounding in javaScript.

JavaScript: Number toFixed() method

The JavaScript toFixed () method is used to round( formats ) a number to a fixed notation point or convert the number into a string and its representation of a number with a specified number of decimal points. It returns value as a string.

Syntax:

number.toFixed(n);

Here,

The first thing is n is an optional parameter in toFixed function.
The second thing is, n is a number of digits after the decimal place to display in the result.

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List of Examples of Number toFixed Methods

Let’s take a look at an example javascript number format one decimal point, two decimal points or without decimal using the toFixed() method in JavaScript.

 var number = 111.123456;

 number.toFixed();
 number.toFixed(1);
 number.toFixed(2);

 //Output
 111
 111.1
 111.12

Source code of this Example

<!DOCTYPE html>
<html>
   <head>
      <title>JavaScript toFixed() Method Example</title>
   </head>
<body>
<button onclick="myFunction()">Click & See Result</button>

<p id="demo"></p>
<p id="demo1"></p>
<p id="demo2"></p>

<script>
  function myFunction() {
      var num = 5230.2256545;
      var n = num.toFixed()
      var n1 = num.toFixed(1)
      var n2 = num.toFixed(2)
      document.getElementById("demo").innerHTML = n;
      document.getElementById("demo1").innerHTML = n1;
      document.getElementById("demo2").innerHTML = n2;
  }
</script>

</body>
</html>

Demo of toFixed() javaScript

JavaScript toFixed() Method Example

Value-1 :-

Value-2 :-

Value-3 :-

Note

Assuming you have a decimal number greater than the real number, taps are added to make the desired decimal length.

How can I round a number in JavaScript? .toFixed() returns a string?

Javascript toFixed With and Without Rounding

Let’s take a new example for rounding a number with or without using .toFixed function.

<!DOCTYPE html>
<html>
   <head>
      <title>Javascript tofixed With and Wthout Rounding Example</title>
   </head>
<body>
<button onclick="calFucntion()">Click & See Result</button>
<br><br>
<b>With Round :-</b> <p id="withRound"></p>
<b>Without Round :-</b> <p id="roundValue"></p>

<script>
  function calFucntion() {
    var num = 5285.8556545;
    var withRound = num.toFixed(2);
    var with2Decimals = num.toString().match(/^-?\d+(?:\.\d{0,2})?/)[0];
    document.getElementById("withRound").innerHTML = withRound;
    document.getElementById("roundValue").innerHTML = with2Decimals;
}
</script>

</body>
</html>

Demo of Javascript toFixed With and Without Rounding

Javascript tofixed With and Wthout Rounding Example

With Round :-

Without Round :-

Let’s see more examples javascript tofixed method

var num = 12345.6789;

num.toFixed();       // Returns '12346': note rounding, no fractional part
num.toFixed(1);      // Returns '12345.7': note rounding
num.toFixed(6);      // Returns '12345.678900': note added zeros
(1.23e+20).toFixed(2);  // Returns '123000000000000000000.00'
(1.23e-10).toFixed(2);  // Returns '0.00'
2.34.toFixed(1);        // Returns '2.3'
2.35.toFixed(1);        // Returns '2.4'. Note it rounds up
2.55.toFixed(1);        // Returns '2.5'. Note it rounds down - see warning above
-2.34.toFixed(1);       // Returns -2.3 (due to operator precedence, negative number literals don't return a string...)
(-2.34).toFixed(1);     // Returns '-2.3'

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Conclusion

In this tutorial, you have learned how to use javascript .tofixed function with examples

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JavaScript Number toFixed() method