Posted in javascript
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4:45 am, November 24, 2020
 

check that a number is in the correct range based on a form selection

This script will check if the number is correct based on a form selection this can be used for checking that a postcode matches a state value or something similar

Lets grab the html select form from here, to get a list of Australian States.

HTML

<select id='aus-regions'>
	<option value="Please Select" disabled selected>Please Select</option>
	<option value="ACT">Australian Capital Territory</option>
	<option value="NSW">New South Wales</option>
	<option value="NT ">Northern Territory</option>
	<option value="QLD">Queensland</option>
	<option value="SA ">South Australia</option>
	<option value="TAS">Tasmania</option>
	<option value="VIC">Victoria</option>
	<option value="WA ">Western Australia</option>
</select>

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unset

The unset CSS keyword resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not. In other words, it behaves like the inherit keyword in the first case, when the property is an inherited property, and like the initial keyword in the second case, when the property is a non-inherited property.
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