So, a Jagged array is basically a array of arrays. This means that the elements in a jagged array are single-dimensional or multi-dimensional arrays. You initiate a jagged array by doing:

type[ ][ ] nameOfArray = new int[#][ ];

-or in the case of the elements being multidemnsional arrays-

type[ ][ , ] nameOfArray = new int[#][ , ];

The number is optional(# can be a symbol for number). It’s just telling the compiler how many elements are in the jagged array, and c# doesn’t require you to tell it that when you initialize the array.

You put elements into the array by:

nameOfArray[indexNumberOfElement] = new type[#];

-or multi dimensional-

nameOfArray[indexNumberOfElement] = new type[#,#];

-or with the arrays being specified-

nameOfArray[indexNumberOfElement] = new type[#] { Var1, Var2,etc};

You can also declare and initialize at the same time:

type[ ][ , ] nameOfArray = new int[#][ , ]

{

new type[#,#] { {Var1,Var2,etc} ,{Var3,Var4,etc}, etc},

new type[#,#]{ {Var1,Var2,etc} ,{Var3,Var4,etc}, etc},

etc

}

For the jagged arrays the number of elements in the array elements can vary, as in a array of 4 elements and a array of 20 elements can be in the same jagged array. You can also leave out the “new int[#][ , ]” and it will still compile.

Microsoft doc link