Email scheduler for Gmail - delete trigger

Overview blog post.

The following Google Apps Script code is designed to delete a specific project trigger from a given trigger ID. In the email scheduler it is called upon by a few different functions to ensure redundant triggers do not remain - as other than their scheduled dates they will all appear identical due to them running the same sendEmail function.

We start by getting all of the existing project triggers:

var allTriggers = ScriptApp.getProjectTriggers();

From this array we can then loop through each in turn and 'getUniqueID' to compare it with the value we have stored in the spreadsheet - to look for a match:

if (allTriggers[i].getUniqueId() == triggerID)

Once we have a match we can 'deleteTrigger' and break the loop so it does not continue to run:

ScriptApp.deleteTrigger(allTriggers[i]);
break;