iseven
iseven(x::Integer) > Bool
Returns true
is x
is even (that is, divisible by 2), and false
otherwise.
julia> iseven(9)
false
julia> iseven(10)
true
Examples

Check if a number is even:
julia> iseven(9) false julia> iseven(10) true
This example demonstrates how to use the
iseven
function to check if a given number is even or not. 
Use in conditional statements:
julia> x = 17; julia> if iseven(x) println("The number is even.") else println("The number is odd.") end The number is odd.
The
iseven
function can be used in conditional statements to perform different actions based on whether a number is even or odd.  Check evenness for a range of numbers:
julia> numbers = [1, 2, 3, 4, 5, 6]; julia> even_numbers = filter(iseven, numbers) 3element Array{Int64,1}: 2 4 6
In this example, the
iseven
function is used with thefilter
function to extract only the even numbers from a given array.
Common mistake example:
julia> iseven(3.5)
ERROR: MethodError: no method matching iseven(::Float64)
The iseven
function only works with integers (Integer
type) and not with floatingpoint numbers. Make sure to use it with the correct data type.
See Also
digits, inf, isdigit, iseven, isfinite, isless, islower, isnumber, isodd, isprime, isqrt, issorted, issubnormal, isxdigit, nan,User Contributed Notes
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