Check if a string contains a non-ASCII value in Julia – ascii() Method

The ascii() is an inbuilt function in julia which is used to convert a specified string to String type and also check the presence of ASCII data. If non-ASCII byte is present, throw an ArgumentError indicating the position of the first non-ASCII byte.

Syntax:
ascii(s::AbstractString)

Parameters:

• s::AbstractString: Specified string

Returns: It returns the converted string if it contain ASCII byte else throw an ArgumentError indicating the position of the first non-ASCII byte.

Example 1:

# Julia program to illustrate
# the use of String ascii() method

# Checking the presence of ASCII byte else
# throw an ArgumentError indicating the
# position of the first non-ASCII byte.

# In below string, ? is the non-ASCII byte
println(ascii("GFG?GFG"))

Output:

ERROR: LoadError: ArgumentError: invalid ASCII at index 4 in "GFG?GFG"
Stacktrace:
 [1] ascii(::String) at ./strings/util.jl:479
while loading /home/cg/root/421147/main.jl, in expression starting on line 9

Example 2:

# Julia program to illustrate
# the use of String ascii() method

# Checking the presence of ASCII byte else
# throw an ArgumentError indicating the
# position of the first non-ASCII byte.

# In below string, non-ASCII byte is not present
println(ascii("GeeksforGeeks"))

Output:

GeeksforGeeks

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