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closure 1 - return result of function /return function 본문

Concepts/TypeScript

closure 1 - return result of function /return function

taesikk 2022. 1. 23. 11:48 
const out = function () {
  let number = 65;
  let internal =function(){
    let char_ = String.fromCharCode(++number);
    return `${char_}:${number}`;
  };
  return internal;
}

This return Function. 

console.log(out());

console.log(out());

 

result 

A:65

B:66

 

const out = function () {
  let number = 65;
  let internal =function(){
    let char_ = String.fromCharCode(++number);
    return `${char_}:${number}`;
  };
  return internal();
}

This return result of Function.

console.log(out());

console.log(out());

 

result

A;65

A:65

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