Check if a specific index of an array contains a value in Julia – isassigned() Method
The isassigned()
is an inbuilt function in julia which is used to test whether the given index contains a value in the specified array or not.
Syntax: isassigned(array, i)
Parameters:
- array: Specified array
- i: Specified index value
Returns: It returns true if the specified index value is present in the array else false.
Example 1:
# Julia program to illustrate # the use of Array isassigned() method # test whether the given index value 3 is # present in the 1D array A. A = [ 5 , 10 , 15 , 20 ] println(isassigned(A, 3 )) # test whether the given index value 5 is # present in the 2D array B of size 2 * 2 B = [ 5 10 ; 15 20 ] println(isassigned(B, 5 )) # test whether the given index value 9 is # present in the 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(isassigned(C, 9 )) |
Output:
Example 2:
# Julia program to illustrate # the use of Array isassigned() method # test whether the given index value 3 is # present in the 1D array A. A = [ 1 , 2 , 3 ]; println(isassigned(A, 10 )) # test whether the given index value 5 is # present in the 2D array B of size 3 * 2 B = [ 5 10 ; 15 20 ; 25 30 ]; println(isassigned(B, 25 )) # test whether the given index value 9 is # present in the 3D array C of size 2 * 2*4 C = cat([ 1 2 ; 3 4 ], [ 5 6 ; 7 8 ], [ 9 10 ; 11 12 ], [ 13 14 ; 15 16 ], dims = 3 ); println(isassigned(C, 9 )) |
Output: