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yhay81/having-the-state1.js

Created March 9, 2018 13:14
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having-the-state1.js
let count = 0;
const doOnlyOnce = function (){
if(count==0){
console.log("You do this for first time.");
}else{
console.log("You already have done this.");
}
count++;
};
doOnlyOnce(); // "You do this for first time."
doOnlyOnce(); // "You already have done this."
doOnlyOnce(); // "You already have done this."
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