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Passing more parameters into callback function


Passing more parameters into callback function

By : Li Xu
Date : November 22 2020, 02:59 PM
will help you You could use a HOF (Higher-Order Function) to avoid writing a separate callback with almost the same body.
code :
function createCallback(yourParameter){
    return function(key, value){
        if(yourParameter === 'Something'){
           //doSomething different;
        } else if(yourParameter === 'Something else'){
           //doSomethingElse
        }
    }
}

var cb1 = createCallback('Something');
var cb2 = createCallback('Something else');

_.forIn({...}, cb1);
_.forIn({...}, cb2);


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Passing Parameters into a Callback Function

Passing Parameters into a Callback Function


By : Anthony Dycks
Date : March 29 2020, 07:55 AM
this one helps. I have a function that listens for a click on the screen and fires a callback. It is part of a Helper object (which is why is preceded by the term Helper in my sample code. That is irrelevant however. , The answer was to use closure in this way:
code :
Helper.bodyClickListener(function(popup) {
    return function(event) {
        event.stopPropagation();
        removePopup(popup);
    };              
}(document.getElementById('tagResultsPopup')));
Passing parameters from function to its callback

Passing parameters from function to its callback


By : vincenzo aceto
Date : March 29 2020, 07:55 AM
I hope this helps you . Here's my code: , You capture it in a closure here:
code :
refreshTree(function(isOk) {
    $.ajax({
        type: "POST",
        url: "/ControllerName/MethodName1",
        success: function (data) {
            refresh(isOk);
        }
    });
});
function refreshTree(callback) {
    var isOk = true;
    $.ajax({
        type: "GET",
        url: "/ControllerName/MethodName2",
        success: function(data) {
            if (data == 'True') {
                isOk = false;
            }
            callback(isOk);
        }
    });
}
function refresh(isOk) {
    if (isOk) {
        //do something
    }
}
Passing parameters to a callback function

Passing parameters to a callback function


By : user2600033
Date : March 29 2020, 07:55 AM
To fix the issue you can do Your foo argument is not a string, it's a callback which you need to call. One of the possible solutions is:
code :
var callbackTester = function (callback) {
    var tryMe = "Are you ready, ";
    callback(tryMe);
};

var createMessageHandler = function (client) {
    this.client = client;
    this.result = function (foo) {
        foo(function (msg) {
            console.log(msg + " " + this.client);
        }.bind(this));
    }
};

(new createMessageHandler("John")).result(callbackTester);
Best way of passing callback function parameters in C++

Best way of passing callback function parameters in C++


By : Muthu
Date : March 29 2020, 07:55 AM
it should still fix some issue What is the best way of passing a callback function parameter in C++? , The
code :
template <typename Function>
void DoSomething(Function&& callback)
template<class T>
std::decay_t<T> copy( T&& t ) { return std::forward<T>(t); }
call( copy(f) );
Passing parameters for callback function

Passing parameters for callback function


By : Freak
Date : March 29 2020, 07:55 AM
hope this fix your issue I have a functionA which takes in two arguments => a callback function and an argument for the callback function. The argument of the callback could be built in type like int or the user defined type. How could I declare the functionA ? , You can pass like this :
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