Examining my schema, it appears like this:
name:
value:
p_vars: {
name1: {},
name2: {},
}
My goal is to determine the number of items in p_vars.
Assuming the interpreter is JavaScript, I attempted the following:
db.collection.findOne().p_vars.length
However, I did not get any results.
The correct answer should be:
Based on the information provided, the answer would be 2 (two items: name1 and name2).
If you're looking for a straightforward solution, consider modifying your schema to incorporate an array of p_vars, which seems to align with your intentions. For instance, if the schema were set up like this:
name:
value:
p_vars: [
name1: {},
name2: {},
]
Then utilizing the
db.collection.findOne().p_vars.lengthOn the contrary, with the existing schema, your best bet might be to develop a JavaScript function to manually iterate through and count the elements.
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