alexandrebvd

function boo(bool) {
  // What is the new fad diet for ghost developers? The Boolean.
  if (typeof(bool) === 'boolean') {
    var isBoolean = true;
  } else {
    isBoolean = false;
  }
  return isBoolean;
}

alexandrebvd

function fearNotLetter(str) {
  var missing = '';
  var isMissing = false;
  for (var i = 0; i < str.length-1; i++) {
    if (str.charCodeAt(i+1) - str.charCodeAt(i) !== 1 && !isMissing) {
      missing = String.fromCharCode(str.charCodeAt(i)+1);
      isMissing = true;
    } else if (!isMissing) {
        missing = undefined;
    }

alexandrebvd

function pair(str) {
  var dnaPair = [];
  var result = [];
  str = str.split('');
  for (var i in str) {
    if (str[i] === 'A') {
      dnaPair.push('A');
      dnaPair.push('T');
    } else if (str[i] === 'T') {
      dnaPair.push('T');

alexandrebvd

function translate(str) {
    var vowel = ['a', 'e', 'i', 'o', 'u'];
    var stop = false;
    var numberOfConsonant = 0;
    str = str.split('');
    length = str.length;
    strNew = str;
    for (var i = 0; i < length; i++) {
        if (vowel.indexOf(str[0]) !== -1 && !stop){
            strNew.push('way');

alexandrebvd

function replace(str, before, after) {
    
    var newStr = str.replace(before, after);
    
    if (before[0] === before[0].toUpperCase()) {
        var afterArray = after.split('');
        afterArray.splice(0, 1, after[0].toUpperCase());
        var newAfter = afterArray.join('');
        console.log(newAfter);
        newStr = str.replace(before, newAfter);

alexandrebvd

function convert(num) {
    //I V X L C D M
    var roman = '';
    var counter = num;
    while (counter !== 0) {
        
        console.log(counter);
        
        if (counter >= 1000) {
            for (var i = 0; i < Math.floor(counter/1000); i++) {

alexandrebvd

function diff(arr1, arr2) {
    
function getDiff(arr1, arr2) {
  var newArr = [];
  for (var i = 0; i < arr2.length; i++) {
    if (arr1.indexOf(arr2[i]) === -1) {
      newArr.push(arr2[i]);
    }
  }
  return newArr;

alexandrebvd

/*function sumAll(arr) {
    function getMaxOfArray(numArray) {
        return Math.max.apply(null, numArray);
        }
    function getMinOfArray(numArray) {
        return Math.min.apply(null, numArray);
        }
    var max = getMaxOfArray(arr);
    var min = getMinOfArray(arr);
    var n = max - min +1; //quantity of numbers to be added.

alexandrebvd

function where(arr, num) {
  newArr = arr.sort();
  finalArr = [];
  for (var i = 0; i < newArr.length; i++) {
    if (num > newArr[i] && num < newArr[i+1]) {
      finalArr.push(newArr[i]);
      finalArr.push(num);
    } else {
        finalArr.push(newArr[i]);
    }

alexandrebvd

function destroyer(arr) {
  var args = Array.prototype.slice.apply(arguments).slice(1);
  for (var i in arr) {
      for (var j in args) {
          if (arr[i] === args[j]) {
              arr.splice(i, 1);
          }
      }
  }
  return arr;