CODEWITHSUNDEEP
javascriptangularjs
Techie_Learner
Techie_Learner

Reputation: 9

How to fix a number to two decimal points with no rounding applied?

I have number saying 15.67789.

I want to display only two numbers after the decimal point (i.e 15.67) with out doing any rounding on the number.

For Eg:

15.67789.toFixed(2) returns 15.68 instead

I want to display only 15.67.

Upvotes: 0

Views: 182

Answers (3)

ofca
ofca

Reputation: 661

Using regex:

edit: I modified regex to accept numbers without decimal places and numbers with one decimal place (thanks @Mi-Creativity):

var num = 134.35324; 
num.toString().match(/^(\d*(\.\d{0,2})?)/)[0];

Working example https://jsfiddle.net/yevwww8m/2/

Using substr:

var num = 15.67789;
num = num.toString().substr(0,'15.67789'.indexOf('.')+3);

Working example: https://jsfiddle.net/pmmy9o3r/

Just for fun, using regex replace:

var num = 15.57789; 
num = num.toString().replace(/^(\d+\.\d{2}).*/g, '$1');

Working example: https://jsfiddle.net/4eq3jd4e/

Upvotes: 1

Mi-Creativity
Mi-Creativity

Reputation: 9654

Updated

Simply multiply the number by 100 to move the point two decimal places, floor it then divide it by 100

var nums = [15.67789, 101.62, 134.35324, 0.00658853, 0.002422, 4.27, 1.1095];

for (var i = 0; i < nums.length; ++i) {
  var temp = nums[i] * 100;
  temp = (('' + temp).split('.')[1] !== '99999999999994') ? (Math.floor(temp) / 100) : nums[i];
  console.log(temp.toFixed(2));
}

Upvotes: 0

Stark Buttowski
Stark Buttowski

Reputation: 1849

angular.module('app', [])
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app='app'>
<input type='number' ng-model='tex' />
{{tex|number:2}}
</body>

use the number filter to specify the number of digits to be displayed after the decimal point.

Upvotes: 0

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