从函数外部更改值

Question

I have something like the following:

function somefunc() {
   function anotherfunc() {
      ...
      if ( m > ... 
      ...
   }
   $(window).on("scroll", anotherfunc);
}

somefunc();

I want to be able to change m value in execution of somefunc("value") (last step in above code snippet - somefunc(); ), so it would transfer the m value to the anotherfunc - but I don't know if I can(able) do so and would like to ask some for your help.

Answer 1

 function somefunc(m) { function anotherfunc() { console.log(m) } $(window).on("scroll", function(){ anotherfunc(m); }); } somefunc(1); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 

Answer 2

Like commented, declare m outside the functions:

 var m = 1; console.log('Outside functions: ' + m); function someFunc() { m += 1; console.log('someFunc: ' + m); function otherFunc() { m += 1; console.log('otherFunc: ' + m); } otherFunc(); } someFunc();