JS nested functions

Question

I am using nested functions

Function mainfunction (callbackfun) {
    //some code + function (score)
    {
        var score = scoreString;
        alert(scoreString);
        callbackFun(score);
    }
}  //--> I return this value to my calling function

mainfunction(function (anystring){
    alert(anystring);  //-> this would return me the value in callbackfun 
});

What I want is access that value in anystring out like

var fetchvalue ;

mainfunction(function (anystring){
    fetchvalue =anystring;  //-> this would return me the value in callbackfun 
});

Please guide me if am on the right track .

Have you tried it? Just a tip: JS is case sensitive, so it should be function instead of Function and your parameter is named callbackfun, not callbackFun. With this fixed, this is what your code is doing: jsfiddle.net/P3bBP. Is this what you want? — Felix Kling
– Felix Kling, Commented Feb 21, 2013 at 10:11
What is the question? What are you trying to achieve with your code? Edit: ok, after editing the question is visible ;-) — acme
– acme, Commented Feb 21, 2013 at 10:12

Billy Moon · Accepted Answer · 2013-02-21 10:14:59Z

2

Tidying up your code a bit, correcting spelling errors etc..., and watching the output of the mainfunction gives you this working script. It is hard to tell if this answers your question, but it does send a variable to a callback function, and then get a return value from that callback.

function mainfunction(callbackfun){
  //some code + function (score)
  var scoreString = Math.random()*10000000

  var score = scoreString;
  alert(callbackfun(score));

}; //  --> i return this value to my calling function

mainfunction(function(anystring){
  return anystring;  //-> this would return me the value in callbackfun 
});

answered Feb 21, 2013 at 10:14

Billy Moon

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