netteForms: min/max wrong validation of numbers

[tvape]

Version: 3.1.14

Bug Description

Bug is related to the commit netteForms: min/max/range can compare strings.

When a form control is used as an argument in the rule, then a numeric string is passed to the js validator and it's not parsed as float, so there is a wrong comparison made.

Example: '100' >= '2' is false in JavaScript.

Steps To Reproduce

$form = new \Nette\Forms\Form();

$form->addFloat('min_age', 'Min age')
    ->setDefaultValue(6);

$form->addFloat('max_age', 'Max age')
    ->setDefaultValue(100)
    ->addRule(\Nette\Forms\Form::Min, null, $form['min_age']);

$form->addSubmit('save', 'Save');

echo $form;

// on submit js error: Please enter a value greater than or equal to 6.

Expected Behavior

Floats and integers should be compared as numbers, not as strings.

Possible Solution

min: function(elem, arg, val) {
	if ((/^-?[0-9]*\.?[0-9]+$/).test(arg)) {
		val = parseFloat(val);
	}
	return val >= arg;
},

max: function(elem, arg, val) {
	if ((/^-?[0-9]*\.?[0-9]+$/).test(arg)) {
		val = parseFloat(val);
	}
	return val <= arg;
},

[sasule]

Confirming that bug.