insert javascript array into another array

Question

Considering the following two arrays. How can I append array "lines" to array "array1". I have tried .push but it appends outside of the array. I have also tried .unshift which doesn't give me the wanted result.

array1 = [
 {
 "Activity #": "1111111",
 "Customer": "Last, First",
 "Tenure": "0 Year 2 Months",
 "Account #": "0000000"
 }];
lines = [
 {
 "Line #": "1",
 "Action Required": "New",
 "Status": "Closed",
 "Product Line": "test line1",
 "Product": "product1"
 },
 {
 "Line #": "2",
 "Action Required": "New",
 "Status": "Closed",
 "Product Line": "test line2",
 "Product": "product2"
 }];

I would like something like this.

my_array = [
{
 "Activity #": "1111111",
 "Customer": "Last, First",
 "Tenure": "0 Year 2 Months",
 "Account #": "0000000",
 "lines": [{
 "Line #": "1",
 "fields": "keys"
 },
 {
 "Line #": "2",
 "fields": "keys"
 }]
}] 

With the mentioned used methods I get something like.

my_array = [
{
 "Activity #": "1111111",
 "Customer": "Last, First",
 "Tenure": "0 Year 2 Months",
 "Account #": "0000000"
}, [
 {
 "Line #": "1",
 "fields": "keys"
 }, {
 "Line #": "2",
 "fields": "keys"
 }]
];

Hope someone can help and my question is clear.

• Felix Kling: @Allan: As far as I can tell, this has nothing to do with JSON.
• Allan Stepps: Yep I confirm, nothing to do with json, shorcut mistake while editing.

Answer 1

It looks like you want to add lines as property to object inside the array, so you'd have to do:

array1[0].lines = lines;

You haven't explained what exactly should happen if you have more elements in array1, so I cannot say anything about that.