How to call a function from another function?

Question

I have a complex code.this is its sample.i can not change structure. how can i call e() in f()?

a=function b()
    {
        var c,d;
        c=function()
        {
              function e()
              {
              ...
              }
              ...
        }
        d=function()
        {
              function f()
              {
              //i need e() here
              }
              ....
        }

}

thank u and it's complicated code and i want to change it and i cant explain it easily. — shayan
– shayan, Commented Oct 21, 2012 at 12:02

lanzz · Accepted Answer · 2012-10-21 12:01:05Z

2

You can't as those are local functions within different scopes and are not accessible from each other. If you need to call e() from inside f()'s scope, then e() shouldn't be defined within c()'s scope, but within b(), where it will be visible in f()'s scope.

answered Oct 21, 2012 at 12:01

lanzz

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Comments

J. K. · Accepted Answer · 2012-10-21 12:00:50Z

1

You can't. That's the whole point of scoping.

You can, however, make the variable e available to the parent scope by declaring it outside the function c.

a = function b() {
  var c, d, e;
  c = function () {
    e = function () {
      ...
    };
    ...
  };
  d = function () {
    function f() {
      e();
    }
    ...
  };
};

answered Oct 21, 2012 at 12:00

J. K.

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4 Comments

Bergi Over a year ago

That would need c to have been called before d/f, which could be confusing.

shayan Over a year ago

what if i have one e() in d() and another in c(). i have to change its name?

J. K. Over a year ago

No, just call it how you normally would: e() in both d and c

shayan Over a year ago

just same name with different functionality

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