thedom85

// https://www.codewars.com/kata/523a86aa4230ebb5420001e1/train/javascript
function anagrams(word, words) {
    word = word.replace(/[^\w]/g).toLowerCase().split('').sort().join('');
    return words.filter(function(v) {return word == v.replace(/[^\w]/g).toLowerCase().split('').sort().join('');});
}

console.log(anagrams('abba', ['aabb']), ['aabb']);
console.log(anagrams('abba', ['aabb', 'abcd', 'bbaa', 'dada']), ['aabb', 'bbaa']);
console.log(anagrams('racer', ['crazer', 'carer', 'racar', 'caers', 'racer']), ['carer', 'racer']);

thedom85

// https://www.codewars.com/kata/515decfd9dcfc23bb6000006/train/javascript

function isValidIP(ipaddress) {
   return  ipaddress.split('.').filter(
      function(v){
          return v==Number(v).toString() && Number(v)<256
      }
    ).length==4;
}

thedom85

// https://www.codewars.com/kata/52223df9e8f98c7aa7000062/train/javascript 
// https://en.wikipedia.org/wiki/ROT13

function rot13(str) {
  if (typeof str !== 'string') {
    throw new TypeError('Argument should be string')
  }

  return str.replace(/[a-z]/gi, (char) => {
    const charCode = char.charCodeAt()

thedom85

// https://www.codewars.com/kata/56ef9790740d30a7ff000199/train/javascript


function treeToArray(tree) {

  return _treeToArrayLevel([].concat(tree));
}

function _treeToArrayLevel(l){
  l = l || [];

thedom85

// https://www.codewars.com/kata/59778cb1b061e877c50000cc


function arrAdder(arr) {
  var outcome = "";
  for (var i = 0;  i < arr[0].length;  i++) {
    for (var j = 0; j < arr.length;  j++) {
      if(arr[j][i]){
        outcome = outcome+arr[j][i];
      }

thedom85

numbers=[0, 1 , 2, 3, 50, 20, 30 ];
numbers.sort( function( a , b){
        if(a > b) return 1;
        if(a < b) return -1;
        return 0;
});

console.log(numbers); 

let employees = [

thedom85

Grep

Grep is a command-line utility for searching plain-text data sets for lines that match a regular expression.

Serch in mdfiles the word git

grep -in 'git' *.md   

Serch in mdfiles the word bash shows one line above and one line below

thedom85

// https://www.codewars.com/kata/51f2d1cafc9c0f745c00037d/train/javascript

function solution(str, ending){
 return (ending.length>0)?ending === str.substr(0 - ending.length):true;
}

console.log(solution('abcde', 'cde'), true)
console.log(solution('abcde', 'abc'), false)
console.log(solution('abcde', ''), true)
console.log(solution(':-)', ':-('), false)

thedom85

Date.prototype.getWeekNumber = function(){
    var d = new Date(Date.UTC(this.getFullYear(), this.getMonth(), this.getDate()));
    var dayNum = d.getUTCDay() || 7;
    d.setUTCDate(d.getUTCDate() + 4 - dayNum);
    var yearStart = new Date(Date.UTC(d.getUTCFullYear(),0,1));
    return Math.ceil((((d - yearStart) / 86400000) + 1)/7)
};
console.log('The current ISO week number is ' + new Date().getWeekNumber())

thedom85

// https://www.codewars.com/kata/5a1ebe0d46d843454100004c/train/javascript

function toDayOfYear(arr) {
    var date = new Date(arr[2], arr[1]-1, arr[0]);
    return (
            Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()) -
            Date.UTC(date.getFullYear(), 0, 0)
            ) / 24 / 60 / 60 / 1000;
}