programming-for-dummies

Branching Statements 491
To make the computer choose between two mutually exclusive sets of commands,
you can use an IF-ELSE statement, such as
Book V
Chapter 3
if (condition) {
Command;
}
else {
Command;
}
JavaScript
As an alternative to the IF-ELSE statement, you can also use the SWITCH
statement to offer two or more choices, such as
switch (expression) {
case value1:
Command;
break;
case value2:
Command;
break;
default:
Command;
}
The SWITCH statement always needs to include the break command to tell
the computer when to exit out of the SWITCH statement.
The above SWITCH statement is equivalent to the following IF-ELSE
statement:
if (expression = value1) {
Command;
}
else if (expression = value2) {
Command;
}
else {
Command;
}
To check if a variable matches multiple values, you can stack multiple case
statements, such as
switch (expression) {
case value1:
case value2:
Command;
break;