How to convert string to double?

[rl]

I am trying to convert strings to doubles in a script but I am getting an error.  What do I need to correct?

mongo convert.js generates "ReferenceError: parseDouble is not defined"

convert.js:

db.mycollection.find().forEach(function(doc) {

doc.vals = [parseDouble(doc.minVal), parseDouble(doc.maxVal)];

db.mycollection.save(doc);

    })

Thanks in advance!

[Scott Hernandez]

I think you want parseFloat(), since there is no parseDouble() unless
you want to write it yourself:
http://royaltutorials.com/javascript-parsedouble/

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[Robert La Ferla]

Thanks. The examples I saw on stackoverflow.com used parseDouble() (bet they didn't test before posting). I tried and parseFloat() works!