formatting a number for dollars in javascript

[DickDeeds]

Hi all,If I have a number like 300, how do I format that to show 300.00? I handle bad numbers like 300.138723 using: x=Math.round(Number(document.frm_journal_entry.debit1.value)*100)/100; document.frm_journal_entry.debit1=x;but cannot find a function like instr to look for a period.Any help would be apprecieated.TIADickDeeds

[Ingolme]

You can try the toFixed() function:

x = 300.138723alert(x.toFixed(2));

[jhecht]

or the toFloat function i believe its called.

[jeffman]

or the toFloat function i believe its called.

In mooTools, maybe. In pure javascript, I can find no such animal.

[jhecht]

think it might be called parseFloat in regular javascript. Not sure if its an object property or a global function though

[jeffman]

Global function. Like parseInt, it takes a number in string form (like you'd get out of a text input) and turns it into a number. It truncates at the first non-number character, but doesn't truncate digits, so parseFloat ("1.33333 is my name") returns 1.33333.

[jesh]

Global function. Like parseInt, it takes a number in string form (like you'd get out of a text input) and turns it into a number. It truncates at the first non-number character, but doesn't truncate digits, so parseFloat ("1.33333 is my name") returns 1.33333.

Also, if you had "12.500000" and you ran parseFloat on it, you'd come back with "12.5" rather than "12.50" which would be expected for US currency. I believe toFixed is the way to go.