Impact Area
Manageability
Severity
High
Affected Element
Lightning
Rule ID #
SF-0058
Impact #
A for-in loop in which the variable name is not explicitly scoped to the enclosing scope with the var keyword can refer to a variable in an enclosing scope outside the nearest enclosing scope. This will overwrite the existing value of the variable in the outer scope when the body of the for-in is evaluated.
Remediation #
Always use the var keyword to declare variables inside for-in loops.
Time to fix #
45 min
References #
See the PMD documentation article: ScopeForInVariable.
