Casper.js WaitFor X or Y

Question

I now can trigger set of actions when 'AM' appears on the site. How do I do it if I need either 'AM' or 'PM' to trigger the action.

casper.waitForText('AM', function() {
    this.echo('found AM');
    //do stuff

});

Answer 1

casper.waitForText() supports also regular expressions:

casper.waitForText(/[AP]M/, function(){
    this.echo('found [AP]M');
});