let add = (()=>{
let count =
0;
return ()=> count++
})
let add = (()=>{
let count =
0;
return ()=> count++
})()
let add = (
function(){
let count =
0;
return function(){
return count++
}
})
let add = (
function(){
let count =
0;
return function(){
return count++
}
})()
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