View source for Common:Convert Variables to Numbers

<noinclude>__NOINDEX__</noinclude>When you want to do calculations on a currency field in Velocity, you need to create a number from the currency strings delivered by the platform. That string has the form <tt>$ 24.95</tt>. The following code converts it into a number:
:<syntaxhighlight lang="html4strict" enclose="div">
#set($n = 0.00)
#set($s = $YourObject.currency_field.substring(2) )
#set($n = $n.parseDouble($s)
</syntaxhighlight>
where:
:* <tt>$n = 0.00</tt> creates an instance of the double-precision float class (Double)
:* <tt>$YourObject.currency_field.substring(2)</tt> removes the first two characters from the currency string. (The <tt>$</tt> sign and the space that follows it.)
:* <tt>parseDouble($s)</tt> converts the resulting string into a double-precision float--a number that can be used in calculations.