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Do not do toString directly on method objects

Do not do function.ToString() comparisons directly as they are handled differently in each browser, always assign to a variable first

CheckId SPC018911
TypeName NoComparisonWithMethodResultToString
Severity CriticalError
Type JavaScriptFile

Bad Practice

return funcCall().toString() === funcCall().toString();

Good Practice
var resultOne = funcCall();
var resultTwo = funcCall();
return resultOne.toString() === resultTwo.toString();

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