Get an Index or row number of an element

[CleanHit]

Let say I have this file:

{
  "tableName": "",
  "tableSchemaName": "",
  "_comment": "",
  "0": ["","", "", ""],
  "1": ["", "", "", ""],
  "2": ["", "", "", ""],
  "3": ["", "", "", ""],
  "4": ["", "", "", ""]
}

Is there a way to get the index or row_number of "0"? I didn't see it in the document.

[gregmarr]

No, that's not an array, it's an object, which is an unordered collection of name/value pairs, so there is no index.

[CleanHit]

I see. So basically I have to remember myself how many lines I have before the "0" starts or save the keys in some kind of ordered structure, if I have to iterate over the keys with numbers. I need it for my loop size.

[nlohmann]

It seems as if an object is not really the right way to model your usecase (as its keys are unordered). Unless you can change this, using a secondary structure to organize the order of keys seems to be the only way.

[CleanHit]

Got it, thanks.