Call a function from associative array by key JavaScript

Question

In JavaScript I have associative array of functions like this (like static field of a class):

functions={'name': function(){},'name':function(){}};

each function do something with array. I also have method:

this.doSomethind= function(name, array){//class member

I need to call one of the functions finding it by name.

$.each(functions, function(key, value) {
                 if(key == name)
                    //here I need to call function with array as paremeter. It seems value(array); doesn't work.
                        }); 
}

Sorry if it's a dumb question, I'm just new in JavaScript. Thanks

Paul Roub · Accepted Answer · 2015-02-04 02:18:06Z

5

If I'm understanding your problem correctly, you should just be able to say:

functions[name](array);

Instead of the $.each() loop.

answered Feb 4, 2015 at 2:18

Paul Roub

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Nathan Taylor · Accepted Answer · 2015-02-04 02:18:09Z

0

Try this:

value.apply(this, [array])

answered Feb 4, 2015 at 2:18

Nathan Taylor

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Comments

James Knight · Accepted Answer · 2015-02-04 02:26:43Z

0

As far as the information you have provided, you cannot access a parameter that is not yet in scope from the class methods. in your example spelling corrected

  //'array' is undefined / out of scope
  this.doSomething = function(name,array){
    //array is defined / in scope!
   };

Otherwise if the variable array you are talking about is defined in the scope somewhere, the first answer will work.

answered Feb 4, 2015 at 2:26

James Knight

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