MeetMartin

SELECT e.name, m.name FROM Employee e, Employee m WHERE e.Employee_id=m.Manager_id;

MeetMartin

public interface Retile {
   void walk();
}

public class Turtle implements Reptile {
   @Override
   public void walk() {
      System.out.println("Turtle is walking!");
   }
}

MeetMartin

#include <stdio.h>
int main()
{
    int num1, num2, num3;
    int *p1, *p2, *p3;

    //taking input from user
    printf("Enter First Number: ");
    scanf("%d",&num1);
    printf("Enter Second Number: ");

MeetMartin

import {filterMap, includes, upperCaseOf, replace, map} from '@7urtle/lambda';

const itsATortoise = replace('TORTOISE')('TURTLE');

const composedMapper = compose(itsATortoise, upperCaseOf);
// the same as const mapper = a => itsATortoise(upperCaseOf(a));

const animals = ['Russian Turtle', 'Greek Turtle', 'House Cat'];
const onlyTurtles = includes('Turtle');

MeetMartin

import {filterMap, includes, upperCaseOf} from '@7urtle/lambda';

const animals = ['Russian Turtle', 'Greek Turtle', 'House Cat'];
const onlyTurtles = includes('Turtle');

filterMap(onlyTurtles, upperCaseOf, animals);
// => ['RUSSIAN TURTLE', 'GREEK TURTLE']

filterMap(onlyTurtles)(upperCaseOf)(animals); // curried
// => ['RUSSIAN TURTLE', 'GREEK TURTLE']

MeetMartin

const myList = [1, 2, 3];
const myChecker = a => a > 1; // filter only numbers larger than 1
const myMapper = a => a + 1; // make all numbers + 1

filterMap(myChecker, myMapper, myList); // => [3, 4]

MeetMartin

const filterMap = (checker, mapper, list) =>
    list.reduce(
      (acc, current) => checker(current) ? acc.push(mapper(current)) && acc : acc,
      []
    );

MeetMartin

import {trim, upperCaseOf, lengthOf, lastLetterOf, includes, compose} from '@7urtle/lambda';

const endsWithPunctuation = input =>
  includes(lastLetterOf(input))('.?,!');

const replacePunctuationWithExclamation = input =>
  substr(lengthOf(input) - 1)(0)(input) + '!';

const addExclamationMark = input =>
  endsWithPunctuation(input)

MeetMartin

const add = a => b => a + b;

const increaseCounter = counter => add(1)(counter);
increaseCounter(5); // => 6

const pointFreeIncreaseCounter = add(1);
pointFreeIncreaseCounter(5); // => 6

MeetMartin

const myFirstClassArrow = a => b => a + b;

myFirstClassArrow(1)(2); // => 3