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JavaScript - how to get size of array inside object?
1 answers
0 points
How to get size of array inside object?
Let's say I have the following object:
xxxxxxxxxx1
var object = {2
id: 1,3
items: [4
{ id: 1, value: 'a' },5
{ id: 2, value: 'b' },6
],7
};and I want to get number of elements inside items array.
How can I do this?
1 answer
0 points
You can use dot property accessor to get the length property value which is the number of elements inside an array.
Practical example:
xxxxxxxxxx1
var object = {2
id: 1,3
items: [4
{ id: 1, value: 'a' },5
{ id: 2, value: 'b' },6
],7
};8
9
var size = object.items.length;10
11
console.log(size); // 2
References
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