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03_closures.js

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// clousures

// gives you an access to an outer functions scope

// from an innner function

// make private variables with closures

function outer() {

// membuat variable just for function

let privateVar = 'secret';

function inner() {

console.log(`hello world is ${privateVar}`);

}

// add return

return inner;

inner(); //invoke

}

// console.log(privateVar); //error cz not defined

// menggunakan () tuk memanggil juga innner

// jika tanpa () tidak akan menghasilkan apapun

outer()(); // hello world

// atau mengguakan variable tuk memanggil innner

// const value = outer();

// value(); // will error solution use return inner function