I have two array of objects say var arr1 = [{a:12},{d:14}] and var arr2 = [{b:15},{c:10}] , I want the following result : arr3 = [{a:12},{b:15},{c:10},{d:14}]
I want to add objects in arr2 at position 2 of arr1. Note the order of a,b,c,d in arr3.
How to insert an array of objects within another array of objects at specified position like Array.split()
Thanks in advance
You could use Array#splice with Function#apply for it.
This allows to insert an array into a given array at a certain position.
var arr1 = [{ a: 12 }, { d: 14 }],
arr2 = [{ b: 15 }, { c: 10 }];
Array.prototype.splice.apply(arr1, [1, 0].concat(arr2));
console.log(arr1);.as-console-wrapper { max-height: 100% !important; top: 0; }You could use splice() with ... spread operator.
var arr1 = [{a:12},{d:14}]
var arr2 = [{b:15},{c:10}]
arr1.splice(1, 0, ...arr2);
console.log(arr1)If you want to keep original array you can first create copy using slice()
var arr1 = [{a:12},{d:14}]
var arr2 = [{b:15},{c:10}]
var result = arr1.slice(0);
result.splice(1, 0, ...arr2);
console.log(result)Use Array#splice method with Function#apply method.
var arr1 = [{
a: 12
}, {
d: 14
}],
arr2 = [{
b: 15
}, {
c: 10
}];
// copy array
var arr3 = arr1.slice();
// insert elements into the array
// with spread operator
[].splice.apply(arr3, [1, 0, ...arr2]); // where first element in array is the insert position
// or with concat method
// [].splice.apply(arr3, [1, 0].concat(arr2));
console.log(arr3);
As long as you know the position, it sounds like you want array.splice().
var myFish = ["angel", "clown", "mandarin", "surgeon"];
myFish.splice(2, 0, "drum");
Example taken from:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice
You can do the exact same thing with objects.
sortthe final array?