JavaScript floatval

Get the float value of a variable

function floatval (mixed_var) {
    // +   original by: Michael White (http://getsprink.com)
    // %        note 1: The native parseFloat() method of JavaScript returns NaN when it encounters a string before an int or float value.
    // *     example 1: floatval('150.03_page-section');
    // *     returns 1: 150.03    // *     example 2: floatval('page: 3');
    // *     returns 2: 0
    // *     example 2: floatval('-50 + 8');
    // *     returns 2: -50
    return (parseFloat(mixed_var) || 0);}

external links: original PHP docs | raw js source

Examples

» Example 1

Running

1	floatval('150.03_page-section');

Should return

150.03

» Example 2

Running

1 2	floatval('page: 3'); floatval('-50 + 8');

Should return

-50

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

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