How do I run multible setIntervals efficiently?-CodePudding

I am creating a bot where every 24 I retrieve categories from a database, and for each category, I will send a post while each post is separated by 1 hour. (After 24 hours send the first post and then one hour later send the next, etc)

My question is how would I set this up while still being able to stop a certain category for the next day. I know setIntervals have an id and I can add them to an array and I can stop the interval with this id. However, I feel like this isn't the most ideal solution.

This is my current solution however I feel like this can be done better either with a node.js package or some other clever work.

let intervalIds = [];
let interval = [];
const categories = ["sad", "toebeans", "meow"]
console.log(`${interval.length}`);

categories.forEach(category => {
    let id = interval.push(setInterval(() => {console.log(`Interval for ${category}`)}, 6000000000));
    intervalIds.push(`${category}=${id}`)
});
// clearInterval(interval[2]) STOPS 6
console.log(interval);
console.log(intervalIds);

let a = 0;
for (let i = 0; i < intervalIds.length; i  ) {
    let split = intervalIds[i].split("=");
    if (split[0] === "sad") {
        clear(a);
        break;
    }
    a  ;
}

function clear(a) {
  clearInterval(interval[a]);
  console.log(interval);
}

I want to be able to call one command that starts all of the timers, and another command that allows a single category to either be turned on or off.

Thanks in advance for the help guys.

CodePudding user response：

better sollution would be make one interval, and in this interval iterate over all categories. Then you can 'set' category as active or inactive:

let categories = new Map();
categories.set("sad", true);
categories.set("toebeans", true);
categories.set("moew", true);

setInterval(() => {
  Array.from(categories.keys()).forEach((category) => {
    if (categories.get(category)) console.log(`Interval for ${category}`);
    //console.log(categories);
  });
}, 6000000000);

function setActive(category, isActive) {
  categories.set(category, isActive);
}

//disable some category
setActive("sad", false);

CodePudding user response：

Make a javascript class that let's you register the category of command by sending a function (the command), a string (the category), and an interval.

myClass.register("some-category", 60000, function(){ doWork(); });

The class will need to maintain each category in a separate array. I would make an object of arrays since they can be referenced via string. E.g.

categories["some-category"].push(command);

Now that you have a registration tool and a way to store the commands sorted. Add a few methods to your javascript class for starting and stopping these:

startAll();
stopAll();
startCategory("some-category");
stopCategory("some-category");