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  • Closures in javascript?

    @harish.dobal
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    Whenever we defined a function within another function, the inner function has accessibility for the variables in the outer function.


    Following is the example of closure.

    function mainFunction(outerData) {
  var mainFuncData = 3;

  function innerFunction(innerFuncData) {
    console.log(outerData + innerFuncData + (++mainFuncData)); // will alert 16
  }

  innerFunction(10);
}

mainFunction(7); //17
    Javascript Closure
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