# Formatting

Fixed allows you to  format numbers to strings.

The following format characters are supported:

```
# - print a digit if present
0 - print a digit if present else 0. Used to pad strings with zeros.
. - print a dot. The invertSeparator parameter controls if this is treated 
       as a decimal place or a group separator.
, - print a comma. The invertSeparator parameter controls if this is treated 
       as a decimal place or a group separator.       
```

Internationally the '.' and ','  characters are used differently. 

### USA, UK, Australia etc

In countries such as the USA, UK and Australia the '.' (dot) is used as the delimiter between integer and decimal parts of a number whilst the ',' (comma) is used to group thousands.

Eleven Hundred dollars and 22 cents.

```
$1,100.22
```

In Europe and other countries the '.' (dot) and ',' (comma) are reversed:

### Europian countries etc

Eleven Hundred dollars and 22 cents.

```
$1.100,22
```

### Inverting separators

When formating a number you use the 'invertSeparator' argument to control who the separators character are used. By default, the USA, UK and Australia method is used. Pass invertSperator: false to use the European variation.

Example 4

```dart
var t3 = Fixed.fromInt(1234, scale: 3); // == 1.234

t3.format('00.###0'); // == '01.2340'

// format using euro separators
t3.format('00,###0', invertSeparator: true);  // == '01,2340'

var euFormat = Fixed.parse('1.000.000,23', invertSeparator: true, scale: 2);
// Format using a locale
euFormat.formatIntl('en-AUS'); // == '1,000,000.23'

// Format using default locale
euFormat.formatIntl(); // '1,000,000.23'
```


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