Avoid unintended global variables
Impact area
Manageability
Severity
High
Affected element
Lightning
Rule ID
SF-0057
Impact
Omitting the var
keyword from a variable definition within a method creates the variable in the global scope, which clutter up the global namespace and make the code slower.
Time to fix
45 min
Remediation
Always use the var
keyword to declare local variables.
References
See the PMD documentation article: GlobalVariable.