Explain how you can work with selection lists.
What will be an ideal response?
The value of a selection list is determined by which option has been selected by a user. The selection list options are organized into the followingoptionsobject collection:?select.options[idref]whereselectis the reference to the selection list object andidrefis the index number or ID of the option.?To return the value from a selection list field, you must first determine which option button has been selected using theselectedIndexproperty. The following code demonstrates how to return the value of the selected option from the model selection list.?var orderForm = document.forms.orderForm;var model = orderForm.elements.model;var modelIndex = model.selectedIndex;var modelValue = model.options[modelIndex].value;
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a. Always passed by reference. b. Passed by reference unless inside a structure. c. Passed by reference unless their elements are structures. d. Always passed by value.
A node in a binary tree that has no children is called
A) a leaf B) a single node C) barren D) a twig
In the accompanying figure, Item _____ points to an image.
A. 2 B. 3 C. 4 D. 5
With the ____ approach, the firewall determines the order in which the rules are processed.
A. Deny All B. In Order C. Best Fit D. Last Fit