Check array is empty or not

[Gayathry]

Hi Experts,

I have a requirement where I need to check ‘group’ array is empty or not. Could someone help with the JSON path expression.

Empty group array JSON looks like:
[
{
“group”: [
{}
]
}
]
Non empty group array json loiks like:

[
{
“group”: [
{
“ID”: “002”
}
{
“ID”: “003”
}
]
}
]

Thanks in Advance.

[bojanvelevski]

Hey @Gayathry,

Check it’s length with the .length method:

$.group.length > 0

Case 1 will return false, Case 2 will return true.

Regards,

Bojan

[Gayathry]

Gayathry:

{}

Thanks Bojan for your quick reply.
Actually as per my requirement inside ‘group’ if getting a empty list ‘{}’, it should return false . But group.lengh is returning true even if list is empty(ie {}).
eg:
if JSON is like below it should return false.
“group”: [
{}
]

[bojanvelevski]

@Gayathry, go with the following expression:

$group.filter(x=>x.hasPath('ID')).length > 0

[darshthakkar]

@bojanvelevski: Thank you for sharing this.
Can we check if the incoming JSON is empty or not using the same?

Thanks.