ColdFusion Developer's Guide

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a. Executes the statement, which can be a single semicolon-terminated statement or a
statement block in curly braces.
b. Returns to step 1.
If the expression is False, processing continues with the next statement.
The following example uses a while loop to populate a 10-element array with multiples of
five.
a = ArrayNew(1);
loop = 1;
while (loop LE 10) {
a[loop] = loop * 5;
loop = loop + 1;
}
As with other loops, you must make sure that at some point the while expression is False and
you must be careful to check your index arithmetic.
Using do-while loops
The do-while loop is like a while loop, except that it tests the loop condition after executing
the loop statement block. The do-while loop has the following format:
do statement while (expression);
The do while statement does the following:
1. Executes the statement, which can be a single semicolon-terminated statement or a
statement block in curly braces.
2. Evaluates the expression.
3. If the expression is true, it returns to step 1.
If the expression is False, processing continues with the next statement.
The following example, like the while loop example, populates a 10-element array with
multiples of 5:
a = ArrayNew(1);
loop = 1;
do {
a[loop] = loop * 5;
loop = loop + 1;
}
while (loop LE 10);
Because the loop index increment follows the array value assignment, the example initializes
the loop variable to 1 and tests to make sure that it is less than or equal to 10.
Using CFScript statements 155