Split string into an array of substrings or characters in MongoDB

Question

I need to convert fields like this:

{ 
    \"_id\" : ObjectId(\"576fd6e87d33ed2f37a6d526\"), 
    \"phoneme\" : \"JH OY1 N Z\" 
}

into an a

Answer 1

Much easier than I thought. Just use JavaScript split function. boom!

db.temp.find().snapshot().forEach( function (el) {
el.phonemes = el.phoneme.split(' ');
db.temp.save(el);
});