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I am looking for a string in mongo that does not discriminate between lower and upper case, the problem is that if a record has a "+" sign it does not find it.

{ username: { $regex: "[email protected]", $options: "i" } } // does not work


{ username: { $regex: "[email protected]", $options: "i" } } // works
tanjiro
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1 Answers1

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You must escape the character "+".

Try something like this:

variable = "^ExamPle\\[email protected]$"
db.testcollection.find({ username: { $regex: variable, $options: "i" } })

Look at the following link Case insensitive search in Mongo

kevic
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