how to find even and odd numbers code example

Example 1: javascript get every odd element

//you can use the css nth-child property like this:
var second-child = document.querySeletorAll('[your element name]:nth-child(odd)');

Example 2: how to check if number is even

if ( n % 2 == 0 ) {
	// n is even
}
else {
	//otherwise odd
}

Example 3: check odd number

#include <stdio.h>
int main() {
    int num;
    printf("Enter an integer: ");
    scanf("%d", &num);

    // True if num is perfectly divisible by 2
    if(num % 2 == 0)
        printf("%d is even.", num);
    else
        printf("%d is odd.", num);
    
    return 0;
}

Example 4: Print the sum of all the odd or even numbers until a given number lua

local function Solve(Range, Limit, CrashRange, OddMode)
    local Range = Range or 1
    local Limit = Limit or 1
    local CrashRange = CrashRange or 999999999
    local OddMode = OddMode or false
    local Even = {}
    local Odd = {}
    local Result = 0

    for i = 1, Limit do
        if OddMode then
            if i %  2 ~= 0 then
                table.insert(Odd, i)
            end
        else
            if i %  2 == 0 then
                table.insert(Even, i)
            end
        end
    end

    if OddMode then
        for k, v in pairs(Odd) do
            if k <= Range then
                Result = Result + v
            end
        end
    else
        for k, v in pairs(Even) do
            if k <= Range then
                Result = Result + v
            end
        end
    end

    if Range > CrashRange then
        print("ERROR")
    else
        print(Result)
    end
end

-- This will print the sum of all the odd or even numbers until a given number.
-- Solve(500, 80000, 9999999, false) 
-- 500 is the amount of odd/even numbers it needs to count.
-- 80000 is the limit, in other words the max number 500 can index. 
-- 9999999 is the crashrange, in other words the number that can not be trespassed. This is to prevent computer crashes.
-- If set to false it will count all the even numbers. If set to true it will count all the odd numbers.

Example 5: how to know if a number is even in c

if((x & 1) == 0)
    printf("EVEN!\n");
else
    printf("ODD!\n");