Javascript Array myUniq() method

var arr = [5,4,3,2,1,2,3,4,5];

Array.prototype.myUniq = function () {
  let uniq = [];//from w w  w  .  j av a2s.co m

  for(let i = 0; i < this.length; i+=1) {
    if (uniq.includes(this[i])) {
      continue;
    } else {
      uniq.push(this[i]);
    }
  }
  return uniq;
}

console.log(arr.my_uniq());

var arr = ['string', 'water',1,2,'string',2];

Array.prototype.myUniq = function () {
  let uniq = [];//from   w  w  w.  j  a v  a 2  s .c o m
  for(let i = 0; i < this.length; i+=1) {
    if (uniq.includes(this[i]) === false) {
      uniq.push(this[i]);
    }
  }
  return uniq;
}

console.log(arr.myUniq());

'use strict';//from   w w w.j  a v a2 s.c  o m
Array.prototype.myUniq = function () {
  let results = [];
  for (let i = 0; i < this.length; i+=1){
    if (results.includes(this[i])){
      continue;
    }
    else {
      results.push(this[i]);
    }
  }
  return results;
};

console.log([1, 2, 1, 3, 3].myUniq());

Array.prototype.myUniq = function () {
  var uniques = [];
  for (var i = 0; i < this.length; i++) {
    if ( uniques.indexOf(this[i]) === -1 ) {
      uniques.push(this[i]);/*from  w ww .j  a va 2 s  .  com*/
    }
  }
  return uniques;
};

function twoSum(arr) {
  var sums = [];

  for (var i = 0; i < arr.length; i++) {
    for (var j = (i + 1); j < arr.length; j++) {
      if ( arr[i] + arr[j] === 0 ) {
        sums.push([i, j]);
      }
    }
  }
  return sums;
}

function myTranspose(arr) {
  var transposed = [];

  for (var row = 0; row < arr.length; row++) {
    transposed.push([]);
// debugger
    for (var i = 0; i < arr[row].length; i++) {
      transposed[row][i] = arr[i][row];
    }
  }

  return transposed;
}

var rows = [
    [0, 1, 2],
    [3, 4, 5],
    [6, 7, 8]
  ];

  // console.log( myTranspose(rows) );

  module.exports = myUniq;

Array.prototype.myUniq = function () {
  const result = [];/*from  ww  w . j a va2 s.  c  o  m*/

  for (let i = 0; i < this.length; i++) {
    if (!result.includes(this[i])) {
      result.push(this[i]);
    }
  }
  return result;
};