Update Javascript "for" loops to ES6+ (let instead var)

Author: HachemiH

snippets/javascript/javascript.snippets

@@ -99,11 +99,11 @@ snippet terr
 snippet ret
 	return ${0:result};
 snippet for "for (...) {...}"
-	for (var ${1:i} = 0, ${2:len} = ${3:Things.length}; $1 < $2; $1++) {
+	for (let ${1:i} = 0, ${2:len} = ${3:Things.length}; $1 < $2; $1++) {
 		${0:${VISUAL}}
 	}
 snippet forr "reversed for (...) {...}"
-	for (var ${2:i} = ${1:Things.length} - 1; $2 >= 0; $2--) {
+	for (let ${2:i} = ${1:Things.length} - 1; $2 >= 0; $2--) {
 		${0:${VISUAL}}
 	}
 snippet wh "(condition) { ... }"
@@ -116,7 +116,7 @@ snippet do "do { ... } while (condition)"
 	} while (${1:/* condition */});
 # For in loop
 snippet fori
-	for (var ${1:prop} in ${2:object}) {
+	for (let ${1:prop} in ${2:object}) {
 		${0:$2[$1]}
 	}
 # Objects