Lesson 8: Understanding JavaScript and Coding Essentials

jQuery, MooTools, and YUI are examples of JavaScript ______.

• methods

• libraries

• event handlers

• functions

Which of the following is a valid name for a JavaScript function?

• 1example$1

• [abc]var1_$

• example$1

• *my.function

Which syntax defines a new variable in JavaScript?

• new

• type

• value

• var

4. What is the proper syntax for an alert box?

• alert{'You clicked the button'}

• alert = 'You clicked the button'

• alert('You clicked the button')

• (alert)('You clicked the button')

Which JavaScript property do you use to change the current content of an HTML element?

• innerHTML

• insideHTML

• modifyHTML

• changeHTML

Which symbol or punctuation mark indicates the end of a JavaScript statement?

• closing curly bracket

• question mark

• semicolon

• closing quote mark

Which of the following is true of alert boxes? (Choose all that apply.)

• They are often used in business and consumer applications.

• They respond to user actions.

• They are used to send and receive files.

• They are commonly used for testing and debugging.

Which technology is most often used to add action and interactivity to a Web application?

• HTML

• CSS

• javaScript

• all of the above

A computer program is most like a ________?

• shopping list

• newspaper article

• memo

• recipe

Which of the following is true of JavaScript functions?

• Functions are reusable.

• The action of a function is the sequence of the actions of the statements inside of it.

• The definition of a function provides action.

• A function is always custom-created.