This also has the effect of removing any default value set previously.
In this example, the variable X can range from 10 to 200; it has a default value of 40.
If the field is left blank, a default value will be provided and displayed.
Those callbacks can be used to check for default values and take action if necessary.
In the second one, the argument is omitted, and the default value of 12 will be used instead.
A property that is not specified takes on a default value.
General ratings range from -10 to 10, with a default value of 1.
These organ weights are for the default value of 20% body fat.
If this is not entered then a default value will be used.
(Note that 2 is the default value on Windows 2003).