javascript - How to access a variable state from the defining function rather than the calling object -

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eg:

func = (){      var i_want_this = "yes";      var callback = function(){         // want access value of i_want_this here         // preferably single variable without whole scope     };      obj.subfunc(some_stuff, callback);  };   obj = {      subfunc = function(stuff, callback){          // stuff          callback();      }  };  func();

you can use variable in callback; work way want to.

this called closure.


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