The function is continuously executed using the setInterval method, each time with distinct parameters

Question

The function is continuously executed using the setInterval method, each time with distinct parameters

Hey there, I have a question about a function that opens a chat form with different attributes when given an emp_id parameter. My goal is to have this form automatically refresh every 10 seconds. However, the current implementation is causing some issues. Whenever the emp_id parameter is changed, the chat messages and form are refreshed multiple times (double or triple), depending on how many times the emp_id is changed. Here is the JavaScript function in question:

function load_chat(emp_id) {
        var url = "#request.self#?fuseaction=objects2.popup_list_chatform"
        url = url + "&employee_id=" + emp_id;
        document.getElementById('form_div').style.display = 'block';                            AjaxPageLoad(url,'form_div',1,'Yükleniyor');
        setInterval( function() { 
            load_chat(emp_id); 
        },10000);
}

When clicking on a user from a list of names, this form is opened using the above function. The issue arises when switching to another user by changing the emp_id, as it causes both the previous and current forms to refresh unnecessarily. How can I modify this behavior so that only the last emp_id value refreshes, instead of all previously changed ids?

Thank you for your assistance, I really appreciate it!

javascript ajax coldfusion parameters setinterval

Answer 1

Answer №1

This code snippet effectively encapsulates the process at hand. The timer id (tid) is enclosed within the function, ensuring that when load_chat is called, it will halt any running intervals.

After configuring the new URL, the interval timer will be initiated once more.

var ChatModule = (function() {
    var tid,
        url;

    function refresh()
    {
        AjaxPageLoad(url, 'form_div', 1, 'Loading');
    }

    return {
        load_chat: function(emp_id) {
            if (tid) {
                clearInterval(tid);
            }
            // set up URL
            url = "#request.self#?fuseaction=objects2.popup_list_chatform"
            url = url + "&employee_id=" + emp_id;
            document.getElementById('form_div').style.display = 'block';
            // loading ajax content
            refresh();
            // starting timer
            tid = setInterval(refresh, 10000);
        }
    }
}());

ChatModule.load_chat(123);

Answer 2

This code snippet effectively encapsulates the process at hand. The timer id (tid) is enclosed within the function, ensuring that when load_chat is called, it will halt any running intervals.

After configuring the new URL, the interval timer will be initiated once more.

var ChatModule = (function() {
    var tid,
        url;

    function refresh()
    {
        AjaxPageLoad(url, 'form_div', 1, 'Loading');
    }

    return {
        load_chat: function(emp_id) {
            if (tid) {
                clearInterval(tid);
            }
            // set up URL
            url = "#request.self#?fuseaction=objects2.popup_list_chatform"
            url = url + "&employee_id=" + emp_id;
            document.getElementById('form_div').style.display = 'block';
            // loading ajax content
            refresh();
            // starting timer
            tid = setInterval(refresh, 10000);
        }
    }
}());

ChatModule.load_chat(123);

Answer 3

Answer №2

To ensure continuous execution of your function, consider using setTimeout instead. This way, each time the function is run, it will schedule the next execution based on a specified condition:

function execute_chat(emp_id) {
    ... // perform tasks
    if (condition_still_valid)
        setTimeout(function() { 
            execute_chat(emp_id); // with same id
        }, 10000);
}
execute_chat("x"); // initiate the process

Alternatively, you can utilize setInterval outside the main function and clear it as needed:

function get_chat_handler(emp_id) {
    return function() {
        ... // do something 
    };
}
var intervalID = setInterval(get_chat_handler("x"), 10000); // begin

// at a later point:
clearInterval(intervalID);

Answer 4

To ensure continuous execution of your function, consider using setTimeout instead. This way, each time the function is run, it will schedule the next execution based on a specified condition:

function execute_chat(emp_id) {
    ... // perform tasks
    if (condition_still_valid)
        setTimeout(function() { 
            execute_chat(emp_id); // with same id
        }, 10000);
}
execute_chat("x"); // initiate the process

Alternatively, you can utilize setInterval outside the main function and clear it as needed:

function get_chat_handler(emp_id) {
    return function() {
        ... // do something 
    };
}
var intervalID = setInterval(get_chat_handler("x"), 10000); // begin

// at a later point:
clearInterval(intervalID);

The function is continuously executed using the setInterval method, each time with distinct parameters

Answer №1

Answer №2

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