MongoDB: cursor.hasNext() method
cursor.hasNext
The cursor.hasNext() method is used to return true if the cursor has more documents to return.
Syntax:
cursor.hasNext()
Return
Boolean
Sample document in the restaurants collection:
{
"address": {
"building": "1007",
"coord": [ -73.856077, 40.848447 ],
"street": "Morris Park Ave",
"zipcode": "10462"
},
"borough": "Bronx",
"cuisine": "Bakery",
"grades": [
{ "date": { "$date": 1393804800000 }, "grade": "A", "score": 2 },
{ "date": { "$date": 1378857600000 }, "grade": "A", "score": 6 },
{ "date": { "$date": 1358985600000 }, "grade": "A", "score": 10 },
{ "date": { "$date": 1322006400000 }, "grade": "A", "score": 9 },
{ "date": { "$date": 1299715200000 }, "grade": "B", "score": 14 }
],
"name": "Morris Park Bake Shop",
"restaurant_id": "30075445"
}
........
Example: MongoDB: cursor.hasNext() method
The following example returns the boolean true because the cursor ( db.restaurants.find() ) has more documents to return.
db.restaurants.find().hasNext();
Output:
> db.restaurants.find().hasNext(); true
Retrieve the restaurants data from here
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cursor.forEach() method
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cursor.hint() method
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https://www.w3resource.com/mongodb/shell-methods/cursor/cursor-hasNext.php
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