var vs let in Loop + setTimeout
Visualisasi event loop memproses callback
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var
Function Scope
for
(
var
i =
0
; i <
3
; i++) {
setTimeout
(() =>
console.log
(i),
0
);
}
Memory
empty
Macrotask Queue
empty
Console
—
let
Block Scope
for
(
let
i =
0
; i <
3
; i++) {
setTimeout
(() =>
console.log
(i),
0
);
}
Memory
empty
Macrotask Queue
empty
Console
—