Searching string with special characters in MongoDB document

Question

I want to search values having special characters such as \" $ / . @ > \" in a document.

Lets consider, I\'ve myKey with values like \"test$aus

Answer 1

You have to escape $ by \:

db.myCollection.find({ myKey : /.*\$aus.*/i }); 
// OR
db.myCollection.find({myKey: { $regex: '.*\\$aus.*', $options: 'i'}})