What is the best way to create a function that triggers another function every minute?

Question

What is the best way to create a function that triggers another function every minute?

Currently, I have a function that checks if a user is authenticated:

isAuthenticated = (): boolean => {
    xxx
};

I am working with AngularJS and I want to create a new function called

keepCheckingAuthentication()

This new function should call the isAuthenticated() function every 60 seconds. How can I achieve this in my AngularJS project?

javascript angularjs

Answer 1

Answer №1

If you need to execute a piece of code at regular intervals, you can use the setInterval function in JavaScript. Here's an example:

var intervalID = setInterval(function() { console.log('This is working!') }, 1000);

To stop the timer, simply use clearInterval(intervalID).

Answer 2

If you need to execute a piece of code at regular intervals, you can use the setInterval function in JavaScript. Here's an example:

var intervalID = setInterval(function() { console.log('This is working!') }, 1000);

To stop the timer, simply use clearInterval(intervalID).

Answer 3

Answer №2

In the scenario where isAuthenticated can be dynamically updated to send a request to the server to verify authentication status, and returns a promise that either resolves or rejects upon completion, this approach could be taken:

var keepCheckingAuthentication = function() {
  return isAuthenticated().catch(angular.noop).then(function(isAuth) {
    // Perform certain actions if isAuth is false
    return $timeout(keepCheckingAuthentication, 60 * 1000);
  });
});

It is important to notice the usage of catch here. By using catch, any rejections are transformed into successes, ensuring the subsequent then callback executes regardless.

Employing this method as opposed to utilizing $setInterval guarantees that there will always be a consistent interval of 60 seconds between interactions with the server, rather than simply sending out requests continuously. This reduces the likelihood of burdening an already slow connection or overloaded server, as each request is only sent out after confirming the previous one has been processed.

Answer 4

In the scenario where isAuthenticated can be dynamically updated to send a request to the server to verify authentication status, and returns a promise that either resolves or rejects upon completion, this approach could be taken:

var keepCheckingAuthentication = function() {
  return isAuthenticated().catch(angular.noop).then(function(isAuth) {
    // Perform certain actions if isAuth is false
    return $timeout(keepCheckingAuthentication, 60 * 1000);
  });
});

It is important to notice the usage of catch here. By using catch, any rejections are transformed into successes, ensuring the subsequent then callback executes regardless.

Employing this method as opposed to utilizing $setInterval guarantees that there will always be a consistent interval of 60 seconds between interactions with the server, rather than simply sending out requests continuously. This reduces the likelihood of burdening an already slow connection or overloaded server, as each request is only sent out after confirming the previous one has been processed.

Answer 5

Answer №3

Perhaps you could utilize the $interval function (which is a wrapper for window.setInterval() in AngularJS)?

You can find the documentation for the $interval function here.

In this scenario, the function keepCheckingAuthentication() serves as your main function, and you have the flexibility to adjust the other parameters based on your specific requirements. Does this explanation make sense?

For example:

$interval(myFunctionAtInterval, 5000) // Set to run every 5 seconds, as an illustration

function myFunctionAtInterval() {...}

Answer 6

Perhaps you could utilize the $interval function (which is a wrapper for window.setInterval() in AngularJS)?

You can find the documentation for the $interval function here.

In this scenario, the function keepCheckingAuthentication() serves as your main function, and you have the flexibility to adjust the other parameters based on your specific requirements. Does this explanation make sense?

For example:

$interval(myFunctionAtInterval, 5000) // Set to run every 5 seconds, as an illustration

function myFunctionAtInterval() {...}

Answer 7

Answer №4

When it comes to managing intervals in JavaScript, I prefer to steer clear of setInterval as much as possible (Paul Irish delves into this topic in his informative video).

My approach involves encapsulating a setTimeout within a function that recursively calls itself (with a condition allowing for easy termination or letting the data dictate when it's no longer necessary).


var condition = true;

$scope.count = 1;

function myFunc(){
   $scope.count += 1;
 }

var timer = function(){
  myFunc();
  if( condition ){
    $timeout(timer, 1000);
  }    
};

timer();

In this implementation, I utilize Angular's built-in $timeout as recommended practice. Check out a live demo

Answer 8

When it comes to managing intervals in JavaScript, I prefer to steer clear of setInterval as much as possible (Paul Irish delves into this topic in his informative video).

My approach involves encapsulating a setTimeout within a function that recursively calls itself (with a condition allowing for easy termination or letting the data dictate when it's no longer necessary).


var condition = true;

$scope.count = 1;

function myFunc(){
   $scope.count += 1;
 }

var timer = function(){
  myFunc();
  if( condition ){
    $timeout(timer, 1000);
  }    
};

timer();

In this implementation, I utilize Angular's built-in $timeout as recommended practice. Check out a live demo

Answer 9

Answer №5

Implementing $interval in your code:

var myFunctionToCall = function() {
    console.log('hey, I am being called');
}

$scope.caller = function(){
    var stopInterval = $interval(myFunctionToCall, 1000);
}

You can use the caller function to start executing the myFunctionToCall function at an interval of 1 second.

Answer 10

Implementing $interval in your code:

var myFunctionToCall = function() {
    console.log('hey, I am being called');
}

$scope.caller = function(){
    var stopInterval = $interval(myFunctionToCall, 1000);
}

You can use the caller function to start executing the myFunctionToCall function at an interval of 1 second.

What is the best way to create a function that triggers another function every minute?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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