Assigning Values to Variables

• Alpha and numeric: +, =
• Numeric: +=, -=, ++, --
• Assignment, increment, decrement.
• Position of increment, decrement
• If students = 31, what will be the outcome of the following statements?
document.write(students++);
document.write(++students);
document.write(students--);
document.write(--students);
students += 5;
students -= 10;
students = students + students;
 
• More operations to come.
• Example: Global vs. Local