I have two arrays and I want to merge them into one array. However, when I attempt to put one array inside the other, I encounter an issue.
var arr=["a","b","c",arr,arr2];
var arr2=["a","b"];
var arr3=[];
arr3=arr[3];
Upon printing out arr, it displays as
["a","b","c",,]
Yet, when I print out arr3, the result is undefined.
How can I resolve this problem?
To properly organize this, follow these steps:
let array1 = [];
let array2 = [ "apple", "banana" ];
// Once array1 and array2 are defined, combine them into a new array:
let array3 = [ "apple", "banana", "cherry", array1, array2 ];
The variable arr is being defined as part of its own array, where element arr[3] references the entire arr. However, since the array arr has not been initialized yet, it returns as undefined.
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