oddoreven/app.js

NPM pakage to determine if a number is odd or even

module.exports = {
    iseven: (a) => {
        if (a > 0) {
            if (a % 2 == 0) {
                return true
            } else {
                return false
            }
        } else {
            return null
        }
    },
    isodd: (a) => {
        if (a > 0) {
            if (a % 2 == 0) {
                return false
            } else {
                return true
            }
        } else {
            return null
        }
    },
    pickodd: (array) => {
        const odds = [];
        for (var i = 0; i < array.length; i++) {
            if (array[i] % 2 == 0) {
                continue;
            } else {
                odds.push(array[i])
            }
        }
        return odds;
    },
    pickeven: (array) => {
        const evens = [];
        for (var i = 0; i < array.length; i++) {
            if (array[i] % 2 == 0) {
                evens.push(array[i])
            } else {
                continue;
            }
        }
        return evens;
    }
};