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# Get number of elements of array in Julia – length() Method

• Last Updated : 26 Mar, 2020

The `length()` is an inbuilt function in julia which is used to return the number of elements present in the specified array.

Syntax: length(A::AbstractArray)

Parameters:

• A: Specified array

Returns: It returns the number of elements present in the specified array.

Example 1:

 `# Julia program to illustrate ``# the use of Array length() method``  ` `# Finding the number of elements present in``# the specified 1D array A.``A ``=` `[``5``, ``10``, ``15``, ``20``]``println(length(A))``  ` `# Finding the number of elements present in``# the specified 2D array B of size 2 * 2``B ``=` `[``5` `10``; ``15` `20``]``println(length(B))``  ` `# Finding the number of elements present in``# the specified 3D array C of size 2 * 2*2``C ``=` `cat([``1` `2``; ``3` `4``], [``5` `6``; ``7` `8``],``        ``[``9` `10``; ``11` `12``], dims ``=` `3``)``println(length(C))`

Output:

Example 2:

 `# Julia program to illustrate ``# the use of Array length() method``   ` `# Finding the number of elements present in``# the specified 1D array A.``A ``=` `[``1``, ``2``, ``3``];``println(length(A))``   ` `# Finding the number of elements present in``# the specified 2D array B of size 2 * 2``B ``=` `[``2` `4``; ``6` `8``; ``10` `12``];``println(length(B))``   ` `# Finding the number of elements present in``# the specified 3D array C of size 2 * 2*2``C ``=` `cat([``1` `2``; ``3` `4``], [``5` `6``; ``7` `8``], ``        ``[``9` `10``; ``11` `12``], [``13` `14``; ``15` `16``], dims ``=` `4``);``println(length(C))`

Output:

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