text: "use strict";
  
  /**
   * Write your solutions here.
   *
   * **Note**: While normally it is good practice to wrap your javascript in an
   * immediately invoked function expression (iife), you should _not_ do that
   * here. If you do, the automated tests will not be able to see your functions.
   * If you don't know what an iffe is, don't worry about it :)
   *
   * This file is for defining the following functions. See README.md for more detail.
   * isTrue
   * isFalse
   * not
   * addOne
   * isEven
   * isIdentical
   * isEqual
   * or
   * and
   * concat
   */
  
  function isTrue(data) {
      return data === true;
  }
  
  function isFalse(data) {
      return data === false;
  }
  
  function not(input) {
      return !input;
  }
  
  function addOne(number) {
      return Number(number) + 1;
  }
  
  function isEven(number) {
      if (typeof number != 'number' && typeof number != 'string') {
          return false;
      }
      return number % 2 == 0;
  }
  
  function isIdentical(value0, value1) {
      return value0 === value1;
  }
  
  function isEqual(value0, value1) {
      return value0 == value1;
  }
  
  function or(input0, input1) {
      return input0 || input1;
  }
  
  function and(input0, input1) {
      return input0 && input1;
  }
  
  function concat(input0, input1) {
      return input0.toString() + input1;
  }