Encode specific fields from store in JSON

Question

Currently I can take a store, push it into an array, and encode it to a JSON object with this:

        var models = msgLogStore.getRange(),
            tmpArray = [];

        for (m = 0; m < models.length; m++) {
            tmpArray.push(models[m].data);
        }

        var msgLogDataAsJson = Ext.JSON.encode(tmpArray);

But how would I go about only pushing specific fields?

Answer 1

You would do this to push the field you want:

tmpArray.push(models[m].data["myField"]);

OR

tmpArray.push(models[m].data.myField);

You can find some doc on JavaScript objects here

Or if you want to NOT push specific fields you can do this before pushing:

models[m].data["unwantedField"] = undefined;