Creating a script in JavaScript to execute a command or query after midnight

Question

Creating a script in JavaScript to execute a command or query after midnight

I have a query regarding MongoDB and JavaScript (Express.js).

Here is the scenario:

I am working on developing a backend service for movies and TV series. I have already set up basic routes and functions. One of my requirements is to select a movie from the database and display it as "Movie Of The Day".

One of my functions is:

function filterFilmsForImdb(films, imdb){
    let filmChances = [];
    films.filter(film => {
        if(film.imdbScore >= imdb){
            filmChances.push(film);
        };
    });
    return filmChances;
};

// Movie Of The Day
function movieOfTheDay(films) {
    const date = new Date();
    if (date.getHours() >= 0) {
        let arr = filterFilmsForImdb(films, 7);
        let numberOfFilmChances = arr.length;
        let randomFilmPicker = Math.floor(Math.random() * numberOfFilmChances);
        return arr[randomFilmPicker]; // returns object (film object)
    };
};

// Recommended Films
function recommendedMovies(films){
   return  filterFilmsForImdb(films, 5);
};

I have written a function that runs after midnight (00:00), but when I refresh the page, it continues to display random data.

Is there a way to modify this function so that it only selects a movie randomly once per day?

Should I provide more details about my routes to clarify my question? Please let me know.

javascript mongodb express

Answer 1

Answer №1

One great option for scheduling tasks in nodejs is the node-cron package.

If you want to run a function after midnight, you can use the following code snippet:

import cron from 'node-cron';
 
cron.schedule('0 0 0 * *', () => {
  console.log('executing a task at midnight');
});

Answer 2

One great option for scheduling tasks in nodejs is the node-cron package.

If you want to run a function after midnight, you can use the following code snippet:

import cron from 'node-cron';
 
cron.schedule('0 0 0 * *', () => {
  console.log('executing a task at midnight');
});

Answer 3

Answer №2

To execute code at regular intervals, you can utilize the setInterval method.

setInterval(movieOfTheDay, 86400000);

The function movieOfTheDay will be triggered after 86400000 milliseconds (equivalent to a day in milliseconds).

It's important to note that there is no need for an if condition within the movieOfTheDay function, as date.getHours() always returns a positive value.

For more information on the setInterval method, refer to this link: reference

Answer 4

To execute code at regular intervals, you can utilize the setInterval method.

setInterval(movieOfTheDay, 86400000);

The function movieOfTheDay will be triggered after 86400000 milliseconds (equivalent to a day in milliseconds).

It's important to note that there is no need for an if condition within the movieOfTheDay function, as date.getHours() always returns a positive value.

For more information on the setInterval method, refer to this link: reference

Answer 5

Answer №3

If you want to run a piece of code at midnight, one approach is to use the setInterval method to check the time every minute. Here's an example:

setInterval(function () {
    var currentDateTime = new Date();
    if(currentDateTime.getMinutes() === 0 && currentDateTime.getHours() === 0) {
        // Your code to execute at midnight goes here
    }
}, 1000);

This technique ensures that your code runs at midnight regardless of page reloads.

Answer 6

If you want to run a piece of code at midnight, one approach is to use the setInterval method to check the time every minute. Here's an example:

setInterval(function () {
    var currentDateTime = new Date();
    if(currentDateTime.getMinutes() === 0 && currentDateTime.getHours() === 0) {
        // Your code to execute at midnight goes here
    }
}, 1000);

This technique ensures that your code runs at midnight regardless of page reloads.

Creating a script in JavaScript to execute a command or query after midnight

Answer №1

Answer №2

Answer №3

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