How to execute functions across objects identically to executing the function itself with a this reference

» javascript » How to execute functions across objects identically to executing the function itself with a this reference

By : T2d

Date : December 02 2020, 10:46 PM

I hope this helps . I am working on a web app that is modular with its root component being the Editor Object. This Editor object handles the creation of multiple components. One of these component objects is the Filebar component which has the ability to reference the functions from the Editor object. Since there are a lot of buttons in the menu within the Filebar, I have created a table named "index" in my code that I use to reference functions within the Editor object. I am able to get the reference to the function itself, but I am having trouble executing the function as if it were being executed in the original object itself. So here are my questions: , In order to pass this to those functions, you have two options:

code :

var myEditor = this;

this.createFilebar = function(){
    myEditor.file = new Filebar(myEditor);
};

this.createFileBar = () => this.file = new FileBar(this);

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Executing Javascript functions by reference

By : user1770394

Date : March 29 2020, 07:55 AM

Does that help looking at your mooshell, the way i'd handle it in mootools is this:
http://mootools.net/shell/yL93N/10/

code :

var proxyFunction = new Class({
    message: "hello",
    Binds: ['passByReference','sayit'],
    passByReference: function(func) {
        // console.log(this, this[func]);
        if (this[func] && $type(this[func]) === "function")
            this[func]();
    },
    sayit: function() {
        alert(this.message);
    },
    killit: function() {
        document.write('we\'re dead');
    }
});

$('tryit').addEvent('change',function(e){
    new proxyFunction().passByReference(this.get('value'));
});

// or have a permanent proxy instance if you call methods of the class often and need it to change things.

var proxy = new proxyFunction();
$('tryit').addEvent('change',function(e){
    proxy.passByReference(this.get('value'));
});

Executing functions in objects

By : Gymkha

Date : March 29 2020, 07:55 AM

it helps some times The syntax you were trying doesn't make sense.
If you wish to execute a function straight away, you can do the following. This works by converting your function for use as an expression, rather than as a declaration:

code :

obj={
  name: (function(){
    alert("maizere");
  })()
};

obj={
  name: function(){
    alert("maizere");
  }
};

obj.name();

Executing functions from a function reference/alias in f#

By : Yangxu Mao

Date : March 29 2020, 07:55 AM

may help you . Member TryFind as well as Map.tryFind function return an Option:

code :

let f = callbacks.TryFind(1);;

val f : (unit -> unit) option = Some <fun:callbacks@4>

let r = match f with
        | Some(fn) -> fn()
        | None -> // what now? You can just return unit
                  ()

callbacks |> Map.tryFind(1) |> Option.iter(fun f -> f());;
One
val it : unit = ()

callbacks |> Map.tryFind(5) |> Option.iter(fun f -> f());;
val it : unit = ()

Sometimes I'd like to know what my shells aliases/functions are before I execute them. Can I log them without executing

By : tala2xlc

Date : March 29 2020, 07:55 AM

I wish this help you You can run the alias command to print out all of your shell aliases. If you want to know what a particular alias resolves to, just pass it to the alias command as an argument:

code :