use case of modulo operator

1// given a list of widgets, files, people, etc.
2longList = 10000; 
3feedbackInterval = 100; // to be used as the modulus
4
5// loop over the list to process each item
6for( i=1; i <= longList; i++ ) {
7	
8  // perform some operation
9	
10  // mod operation gives feedback once every hundred loops
11  if( i % feedbackInterval == 0 ) {
12    percentCompleted = ( i / longList ) * 100;
13    writeOutput( "#percentCompleted# percent complete. " );
14  }
15	
16}
17

1function minutesToHours( m ) {
2  hours = floor( m/60 );
3  minutes = m%60;
4    
5  return "#hours# hours #minutes# minutes";
6}
7writeOutput( minutesToHours( 349 ) );
8

1// array of options that we want to cycle through
2weekdays = [ 'Mon', 'Tue', 'Wed', 'Thu', 'Fri' ];
3
4// option count provides modulus (divisor)
5dayCount = weekdays.len();
6
7employeeCount = 14;
8
9// loop over employees while rotating through days
10for( i=0; i < employeeCount; i++ ) {
11
12  // employee number mod option count
13  dayIndex = i % dayCount;
14  // adjust because CFML array indexed from 1
15  dayIndex++;
16  // use result to cycle through weekday array positions
17  weekday = weekdays[ dayIndex ];
18
19  writeOutput( "Scheduling employee on #weekday#. " );
20}
21