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In Ruby, it's possible for an array to contain itself, making it a recursive array. Is it possible to put a JavaScript array inside itself as well?
var arr = new Array();
arr[0] = "The next element of this array is the array itself."
Now how can I move arr into arr[1] so that the array contains itself recursively, (e. g., so that arr[1] is arr, arr[1][1] contains arr, arr[1][1][1] contains arr, etc.)?
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Array contains a primitive value A primitive value in JavaScript is a string, number, boolean, symbol, and special value undefined . const hasValue = array. includes(value[, fromIndex]);
There are various methods to check an array includes an object or not. Using includes() Method: If array contains an object/element can be determined by using includes() method. This method returns true if the array contains the object/element else return false.
JavaScript does not provide the multidimensional array natively. However, you can create a multidimensional array by defining an array of elements, where each element is also another array. For this reason, we can say that a JavaScript multidimensional array is an array of arrays.
JavaScript variables can be objects. Arrays are special kinds of objects. Because of this, you can have variables of different types in the same Array.
Sure:
var a = [1];
a.push(a);
They're the same object:
a[1] === a[1][1] // true
And a convincing screenshot:
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