Elance Exams Answers PDF file

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Download PDF file of elance Zoho Creator Exam Answers
elance-zoho-creator-exam.pdf

You want to minus one to field foo, what should you use?

{ $dec : { foo : 1 } }
{ foo : { $inc : -1 } }
{ foo : { $dec : 1 } }
{ $inc : { foo : -1 } }
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