How To Fix JavaScript Floating Point Errors

Author: erics, February 27th, 2015

The .toFixed(2) method will round off the value of the field to 2 decimal places

decimalNumTwoPlaces = parseFloat(this.value.toFixed(2));

1	decimalNumTwoPlaces = parseFloat(this.value.toFixed(2));

How To Round And Format Numbers In JavaScript

Author: erics, September 23rd, 2012

var num = 10;
var result = num.toFixed(2); // result will equal 10.00

var num= 170.2305;
var result = num.toFixed(3); // result will equal 170.231

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var num = 10;

var result = num.toFixed(2); // result will equal 10.00

var num= 170.2305;

var result = num.toFixed(3); // result will equal 170.231

Author: erics, October 10th, 2011

my $number = 123.45;
printf("%.3f", $number);

1 2	my $number = 123.45; printf("%.3f", $number);

Outputs: 123.450