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