Exam 13: Programming for Web Forms Tutorial

The Luhn Algorithm provides a quick validation check on an account number by ensuring that the sum of the digits in the number meet certain mathematical criteria

What does & signify in the string "R2D2&C3PO"?

The select.name method returns the selection list field name.

Identify the method that can be used to create an array of substrings.

Case based critical thinking Case 13-3 Thomas is working on reference forms and form fields. He wants to use event handlers that can respond to user actions within a form. He uses the element.onchange event handler. Identify the description of the event handler Thomas has used.

The charAt() method can extract long text strings.

The element.onselect event handler signifies that the element value is invalid.

Identify the toLocaleString() method that gives you more control while formatting numeric values.

Which of the following CSS selector returns the option button that is checked within the protection field?

Using the _____, you can direct the browser to retrieve specific information about the URL, to reload the current page, or to load an entirely new page.

The code of a regular expression can be directly entered in JavaScript as a _____.

Since a page can contain multiple web forms, JavaScript organizes the forms into _____ object collection.

In a regular expression, you can define two possible patterns for the same text string by joining different patterns using the _____ character. 13

Case based critical thinking Case 13-1 Sarah wants to set the value of an input control. She applies the element.value = value; expression. What does element signify in the expression that Sarah has used?

Identify the use of string.indexOf(str [,start]) method.

Radio buttons are grouped by a common field name placed within the _____ array.

For options buttons and check boxes, you can use the onclick event handler in response to the user clicking those elements.

Identify the syntax used to group character symbols so they can be treated as a single unit.

With no arguments, the toLocaleString() method displays the numeric value using the local standards on the user's computer.