CODEWITHSUNDEEP
javascript
Icultlive Icultlive
Icultlive Icultlive

Reputation: 143

call a function from another scope

please help to run a function that is in a different scope

have the following code: 

function a(){
    var rrr = 8;
    function aim(arg){
        console.log('aim' + arg);
        console.log(rrr);
    }
};

function b(){
    a.aim('this is argument');
};

call a.aim ('this is argument'); does not work, the console displays a message

Uncaught ReferenceError: a is not defined

tried to call through apply. also unsuccessfully

Upvotes: 0

Views: 308

Answers (4)

Thiago Custodio
Thiago Custodio

Reputation: 18387

using revealing module pattern:

var a = function(){
   var rrr = 8;
   function aim(arg){
    console.log('aim' + arg);
        console.log(rrr);
   }

   return {      
      aim: aim
   }
}();

function b() {
    a.aim('test');
}

Upvotes: 4

Kunj
Kunj

Reputation: 2018

You need the 2 minor changes:

function a(){
    var rrr = 8;
    this.aim = function(arg){
        console.log('aim' + arg);
        console.log(rrr);
    }
};

var aa = new a();
function b(){
    aa.aim('this is argument');
};

Upvotes: 0

matewka
matewka

Reputation: 10148

If you want to refer to a function as an object you need to create it first. Also, aim should be a property of this function (class)

function a() {
    var rrr = 8;
    this.aim = function(arg) {
        console.log('aim' + arg);
        console.log(rrr);
    }
};

function b() {
    var aa = new a();
    aa.aim('this is argument');
}

Upvotes: 0

Tesseract
Tesseract

Reputation: 8139

function a(){
    var rrr = 8;
    return function aim(arg){
        console.log('aim' + arg);
        console.log(rrr);
    }
};


function b(){
    var aim = a();
    aim('this is argument');
};

Upvotes: 0

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