Node.js node-schedule scheduled task execution method every few minutes_node.js

In Node.js, I use node-schedule to execute scheduled tasks. The Cron-style time format is not intuitive for beginners, so this method is generally used: For example, in the official example, the task is executed at 42 minutes per hour

Copy code The code is as follows:

var schedule = require('node-schedule');

var rule = new schedule.RecurrenceRule();
rule.minute = 42;

var j = schedule.scheduleJob(rule, function(){
console.log('The answer to life, the universe, and everything!');
});

So the question is, how to execute a task every 15 minutes or 30 minutes?

The key thing is that rule.minute supports arrays. Knowing this will make it easy to operate

Execute every 15 minutes:

Copy code The code is as follows:

rule.minute = [0, 15, 45];

Similarly, execute every 30 minutes:

Copy code The code is as follows:

rule.minute = [0, 30];