Website Development

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Website Development Management
MIS 3353 -- Fall 2003

• JavaScript Applying the Concepts

Instructor John Seydel, Ph.D.
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Student Objectives

• List the three types of programming control
  structures
• Use the if and if / else constructs to build
  control logic into scripts
• Incorporate looping into scripts by using the
  while construct

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Some Administrative Things

• Problems with exercises . . . ?
• Guestbook
• Calculator
• Projects from Chapter 3
• Other . . . ?
• Website grading . . .

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Control Structures

• Take us beyond simple sequential processing
• Control structures implement logic and are what
  make computers automated processors
• Types of control structures
• Selection
• if
• if / else
• if / else if
• switch / case
• Looping
• while
• do while
• For
• Also jumping (i.e., calling subprograms)

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Working with the Basic if Construct

• Syntax
• if (condition)
• statement 1
• statement 2
• . . .
• Demonstration Calc1d

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A Slight Enhancement else

• Syntax for the if / else construct
• if (condition)
• statement 1
• . . .
• else
• other statement 1
• . . .
• Demonstration Calc1e

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Another Enhancement else if

• Syntax for the if / else if / else construct
• if (condition1)
• statement 1
• . . .
• else if (condition2)
• other statement 1
• . . .
• else
• another statement 1
• . . .
• Demonstration Calc1x

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Repetition Using while Loops

• Syntax for while loops
• while (condition)
• statement 1
• statement 2
• . . .
• (incorporate something that will eventually
  modify the condition)
• Demonstration exam1proc_1.htm

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Summary of Objectives

• List the three types of programming control
  structures
• Use the if and if / else constructs to build
  control logic into scripts
• Incorporate looping into scripts by using the
  while construct