Julia | checkindex() function with examples

The checkindex() is an inbuilt function in julia which is used to return true if the given index value lies within the range, otherwise returns false.

Syntax: checkindex(Bool, Range, Index)

Parameters: This function accepts three parameters which are illustrated below:-

• Bool: This says that this function will return boolean values as output.
• Range: It is the specified range.
• Index: It is the index value which are going to be calculated either it lies in the range or not.

Returns: It returns the value true if the index value lies in the range else false.

Below are some codes which illustrate the above function:
Example #1:

# Julia Program for illustration of
# checkindex() function

# Initializing a range value from 1 to 10
Range = 1:10

# Initializing a index value of 5
Index = 5

# Calling the checkindex() function
A = checkindex(Bool, Range, Index)

# Getting the value true or false
println(A)

Output:

true

Example #2:

# Julia Program for illustration of
# checkindex() function

# Initializing a range value from 1 to 10
Range = 1:10

# Initializing a index value of 15
Index = 15

# Calling the checkindex() function
A = checkindex(Bool, Range, Index)

# Getting the value true or false
println(A)

Output:

false