what is modulus operator
// given a list of widgets, files, people, etc.
longList = 10000;
feedbackInterval = 100; // to be used as the modulus
// loop over the list to process each item
for( i=1; i <= longList; i++ ) {
// perform some operation
// mod operation gives feedback once every hundred loops
if( i % feedbackInterval == 0 ) {
percentCompleted = ( i / longList ) * 100;
writeOutput( "#percentCompleted# percent complete. " );
}
}