LET vs VAR vs CONST in for loops

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CONST
const s = "I am a test string";
const t = "I am 2nd test string";

let count = 0;
const map = {}
for (const c of s) {
	if (!map[c]) {
		map[c] = 1;
	} else {
		map[c] += 1
	}
}
for (const c of t) {
	if (map[c]) {
		map[c] -= 1
	} else {
		count++
	}
}
ready
LET
const s = "I am a test string";
const t = "I am 2nd test string";

let count = 0;
const map = {}
for (let c of s) {
	if (!map[c]) {
		map[c] = 1;
	} else {
		map[c] += 1
	}
}
for (let c of t) {
	if (map[c]) {
		map[c] -= 1
	} else {
		count++
	}
}
ready
VAR
const s = "I am a test string";
const t = "I am 2nd test string";

let count = 0;
const map = {}
for (var c of s) {
	if (!map[c]) {
		map[c] = 1;
	} else {
		map[c] += 1
	}
}
for (var c of t) {
	if (map[c]) {
		map[c] -= 1
	} else {
		count++
	}
}
ready

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