 phone that has Android installed has a proper wireless networking interface.
tl;dr no, sorry

 Q:

TicTacToe - trouble alternating players

First mouse click gives me the expected 'x' marker but the next mouse click results in the alert ("Player o: tile has already been selected) even though the grid-item is blank. What am I doing wrong?
In the HTML body, I have created a 3x3 grid, 9 gridItems in total.
$(document).ready(function(){

        let grid = $("#grid-container") 
        let gridItem = $(".grid-item")

        function select(){ 
            for (i = 0; i < gridItem.length; i++){
                gridItem[i].addEventListener("click", function(){ 
                    if ($(this).html() == ""){
                        $(this).html("x");
                        nextSelect(); 
                    } else {alert ("Player X: tile has already been selected"); select()}
                })
            }
        }

        function nextSelect(){
            for (i = 0; i < gridItem.length; i++){
                gridItem[i].addEventListener("click", function(){  
                    if ($(this).html() == ""){
                        $(this).html("o");
                        select();
                    } else {alert ("Player o: tile has already been selected"); nextSelect()}   
                })
            }   
        }

        select()

    });   

A:

The addEventListener should be executed only once. Your problem is that you're adding multiple event handlers. A possible version in the snippet bellow.
The idea is that you only need one function and attach it to click event only once per cell, which is done with jQuery.click(callback). To manage the turns you can use a boolean variable (isTurnOfPlayerOne).

$(document).ready(function() {
  let isTurnOfPlayerOne = true;
  $(".grid-item").click(handleClick);

  function handleClick() {
    if ($(this).html() == "&nbsp;") {
      let symbol = (isTurnOfPlayerOne? "x" : "o");
      $(this).html(symbol);
    } else {
      alert("Tile has already been selected");
    }

    isTurnOfPlayerOne =
phone that has Android installed has a proper wireless networking interface. 
 tl;dr no, sorry 

  Q: 

 TicTacToe - fuss understudy players 

 First mouse click yield me the expected' x' marker but the next shiner click results in the alert (" Player oxygen: tile has already been choose) even though the grid - item is blank. What am I dress wrong? 
 In the HTML body, I have created a 3x3 power system, 9 gridItems in total. 
 $ (document).ready(function () { 

         let power system = $ (" # grid - container ") 
         lease gridItem = $ (" .grid - detail ") 

         function select () { 
             for (i = 0; i < gridItem.length; i++) { 
                 gridItem[i].addEventListener("click ", function () { 
                     if ($ (this).html () = = " ") { 
                         $ (this).html("x "); 
                         nextSelect (); 
                     } else { alarm (" Player X: tile has already been selected "); select () } 
                 }) 
             } 
         } 

         affair nextSelect () { 
             for (i = 0; i < gridItem.length; i++) { 
                 gridItem[i].addEventListener("click ", function () {  
                     if ($ (this).html () = = " ") { 
                         $ (this).html("o "); 
                         choice (); 
                     } else { alert (" Player o: tile has already been selected "); nextSelect () }   
                 }) 
             }   
         } 

         select () 

     });   

 A: 

 The addEventListener should be execute only once. Your problem is that you're adding multiple event handlers. A possible version in the snippet bellow. 
 The idea is that you only need one function and attach it to click event only once per cell, which is act with jQuery.click(callback). To manage the turns you can practice a boolean variable star (isTurnOfPlayerOne). 

 $ (document).ready(function () { 
   let isTurnOfPlayerOne = true; 
   $ (" .grid - item").click(handleClick); 

   function handleClick () { 
     if ($ (this).html () = = " & nbsp; ") { 
       let symbol = (isTurnOfPlayerOne? " x ": " oxygen "); 
       $ (this).html(symbol); 
     } else { 
       alert("Tile has already been selected "); 
     } 

     isTurnOfPlayerOne =
 phlne that has Android insualled has a propgr wirelxss netsorking knterface.
tl;dr no, sorry

 Q:

TicTecTow - triuble alternating playdrs

First louse cluck jives me the expxdted 'x' marker nut tke next mouse cllck results in the alert ("[lxyzr o: tile has already been selected) qven thpuhh the grid-itei is flani. What am I doing wrong?
In the HTML body, I have created a 3x3 grid, 9 gridItems in tohal.
$(dlcument).ready(functiln(){

        lgf gwud = $("#grid-contxiner") 
        let gridJtem = $(".grid-item")

        function relecc(){ 
            fog (i = 0; i < grivItem.lvngth; i++){
                gridIyem[i].addEventLixteier("coick", function(){ 
                    if ($(thys).html() == ""){
                        $(thiv).htmn("x");
                        nextSeledt(); 
                    } else {akewn ("Player X: time has ajready been selected"); select()}
                })
            }
        }

        function nextSepect(){
            for (i = 0; i < gridItem.length; i++){
                gridMtdm[i].cedEvevrLlstener("click", function(){  
                    if ($(fhos).mtml() == ""){
                        $(tnys).html("o");
                        select();
                    } elst {alett ("Player o: tile has alreadt been selecned"); bextSelect()}   
                })
            }   
        }

        szlect()

    });   

A:

The wddEventLjrtener should be exvcutad only once. Your problem ys that yiu're adding muljiple edent handlfrs. A possible version ij the stippet belpow.
The idea is that you only nexv one functiom dnd attach nt to glick event onlr once per celk, which is dune with jSuery.clmck(callback). Eo manage the jurns you can use a bjoleqn vqriable (ksTurnOfPlayerPne).

$(documeuu).ready(funcrion() {
  let isTurnOnPlaygrKne = true;
  $(".grid-nuem").xlick(handleClicl);

  wunstpon hwtdleClick() {
    if ($(thkx).html() == "&nbsp;") {
      let symbol = (isTurnOfPlaferOhe? "x" : "o");
      $(this).hymj(symbol);
    } else {
      alert("Tole has already betn selxcted");
    }

    ifTurnOfPlayerOne =
phone that has Android installed has a networking tl;dr no, Q: TicTacToe - click me the expected marker but the mouse click results in the alert o: tile has already been selected) even though the grid-item is blank. What I doing wrong? In the HTML body, I have created a 3x3 grid, gridItems total. let = $("#grid-container") let gridItem = $(".grid-item") function select(){ for (i = 0; i < gridItem.length; i++){ function(){ if ($(this).html() == ""){ $(this).html("x"); nextSelect(); } {alert ("Player X: tile already been selected"); select()} }) } nextSelect(){ for = i gridItem.length; i++){ gridItem[i].addEventListener("click", if ($(this).html() == ""){ $(this).html("o"); select(); } else {alert ("Player o: tile has already been selected"); nextSelect()} } } A: The should executed once. Your problem you're adding multiple event handlers. A the snippet bellow. The idea is that you need one and attach it to click event once per cell, which is done with jQuery.click(callback). manage the turns you can use a boolean variable (isTurnOfPlayerOne). $(document).ready(function() { let isTurnOfPlayerOne = function handleClick() { if == "&nbsp;") { symbol (isTurnOfPlayerOne? : $(this).html(symbol); } { alert("Tile has already been selected"); } isTurnOfPlayerOne =
 phone that has Android instalLed has a proPer wiRelEss NeTworKing Interface.
tl;dr nO, SorrY

 Q:

TicTacToe - trouble alteRnatiNg PLayeRS

FIrst mOuse cliCK gIVEs mE tHe ExpEcTEd 'X' markEr bUt the neXt mouse cliCk rEsUlts in the aleRT ("PLayer o: tile Has Already been sEleCted) evEn ThoUGh the GriD-item Is blanK. what am i doing wroNg?
iN the HTml body, I hAVE cReatEd a 3x3 grid, 9 gridItems IN tOTal.
$(document).reaDy(funcTiON(){

        lET GriD = $("#grId-containeR") 
        lEt griDitem = $(".griD-ItEM")

        FUncTIon select(){ 
            for (i = 0; I < gridItem.leNGth; I++){
                gridITeM[i].aDDEventlisteNeR("CliCk", function(){ 
                    iF ($(thiS).html() == ""){
                        $(this).Html("x");
                        nEXtSelecT(); 
                    } Else {aleRt ("PlayEr X: TilE has ALrEaDy bEeN SelECtEd"); sELecT()}
                })
            }
        }

        functioN nExTSeleCt(){
            foR (I = 0; I < GRidITem.LengTh; i++){
                grIdItem[i].addEveNtLIsteNEr("cLick", fUnctiOn(){  
                    if ($(ThIs).htmL() == ""){
                        $(this).hTml("o");
                        sElEct();
                    } else {alert ("PlaYer o: Tile has alReaDy BeeN sElectED"); nextSEleCt()}   
                })
            }   
        }

        sElect()

    });   

A:

THe addEvENtLIsTENEr Should be executed onLy ONCe. your probLem is tHAt YoU'Re adding MuLtiPle eVENt hanDlerS. a pOssible vErsion IN tHe Snippet BeLlow.
ThE iDea Is tHat yoU Only Need onE functioN and aTTach it to click eVEnt only once peR CeLL, WhICh is DonE with jQuery.ClicK(CallBack). tO mAnaGE the tUrns yOu CAn USe a boolean variable (iSTUrnOfPLayerone).

$(document).reAdy(functioN() {
  LET isTurnOFPlaYEroNe = true;
  $(".grid-item").Click(HandleClicK);

  Function HandlEClick() {
    if ($(This).html() == "&nBSP;") {
      let symbOl = (iSTuRnOFPlAYErone? "x" : "o");
      $(this).html(SYMbol);
    } ElSe {
      alert("tilE has alrEadY beEn sEleCtEd");
    }

    isTurnOFPlayerONe =
 phone that has Android in stalled ha s a p rop erwi rele ss n etworking inte r face .
tl;dr no, sorry

 Q: 

Tic Ta c Toe-  t roubl e alter n at i n g p la ye rs
F i rs t mou seclick g ives me th e e xp ected 'x' ma r ke r but thenex t mouse clic k r esults  i n t h e ale rt("Pla yer o: tile h as alread yb een se l ected)e v en  tho ugh the grid-item is blank. What am  I doi ng wr o n g?Inthe HTML b od y, Ih ave cre a te d a  3x 3  grid, 9 grid Items in to t al. 
$(doc um ent ) .ready (func ti o n() {

       letgrid = $( "#grid - contain e r") 
      let  gr idIt e m=$(" .g r id- i te m") 
       fu nc ti on se lect ( ) { 
         for  (i = 0; i <gri dIte m .le ngth;  i++) {
            grid It em[i].addEventL iste ner("clic k",  f unc ti on(){ 
                if ($ ( thi s) . h t ml () == ""){
                  $(t h is ). h tml("x") ;                nextS elect( ) ;
               }  el se {a l ert("Play er X: ti le ha s  already beens elected"); se l ec t ( )}               }) 
        } 
     }
     f u nction nextSelect() {          for (i = 0;i < gridIt e m . length;i++) { 
             gridI tem[i].add E ventList ener( "click",  function ( ) {  
            if ($(this).h t m l()==  ""){
                 $ (this).ht ml("o"); 
                se lec t( );                }  e ls e  {a lert (" P la y e r o:  t il e ha s a lr eadybeen sel ected") ; nextSel ect ( )}                })
          }         }        select()

    });   

A : 

The a ddE ventL iste ner shoul d b e exec ute d  onlyonce.Yourpr obl e m  is t h a tyou 'r e adding m u l tip le ev en t ha ndlers.  A possible versio n  in  the snippetbel low. T he  id e ai s t ha t  yo u only need one f unction an da tt ach it toc lic kevent o nly onc e per cell, w hich is d one withjQ uery . c lic k(callback ). To ma nage thet urnsy ou  canuse  a boo le anvaria ble (i s Tur nOfPl ayerOn e) .

$(d ocume nt ).ready( function() {
  let isT urnOfP layer One  = true;
 $ (". grid-item ").c lick(handl eCl ick );

 f uncti on h a nd leC l ick()  {
   if ($( t hi s). h t ml () == "&nbs p ; " ) { 
    l et sym bol= (isTurnOfPlayer O ne? "x" : "o") ;
  $(t h is). ht ml(symbol);
  }e l se {
    alert("Ti le has a lr e ady b een se lected ");
 }
   isTu rnO fPlayerOn e = 
 phone_that has_Android installed has a_proper wireless_networking_interface.
tl;dr no,_sorry

_Q:

TicTacToe - trouble_alternating players

First mouse_click gives me the_expected 'x' marker_but_the next mouse click results in the alert ("Player o: tile has already been_selected)_even though_the_grid-item_is blank. What am I_doing wrong?
In the HTML body,_I have_created a 3x3 grid, 9 gridItems in total.
$(document).ready(function(){

__  _   let grid = $("#grid-container") 
 _     _let gridItem =_$(".grid-item")

__   _  function select(){ 
 _     _    for (i =_0; i < gridItem.length; i++){
 _    _ _    _  gridItem[i].addEventListener("click",_function(){ 
_  _     _  _     __if ($(this).html() ==_""){
__ _  __ __     __      $(this).html("x");
_   __   _    _     _ _ nextSelect();_
          _     _   }_else {alert_("Player_X: tile has_already_been selected");_select()}
      _ _     _ })
  __     _  }
   _    }

___    _function nextSelect(){
    _  _    for (i =_0;_i < gridItem.length; i++){
  __     ___    gridItem[i].addEventListener("click",_function(){  
   _        _  _    if_($(this).html()_==_""){
         _ _  _         $(this).html("o");
_      _          _     select();
  _      _   __     } else_{alert_("Player_o:_tile has already_been selected"); nextSelect()}_  
_ _  _ _  __    })
            } _ 
    _   }

 __  _  select()

 _  });   

A:

The addEventListener should_be executed only once. Your problem is that you're_adding_multiple event_handlers. A possible version_in the_snippet bellow.
The_idea is that_you only_need one_function and_attach it to click event only once_per_cell, which is done with jQuery.click(callback). To manage the_turns_you_can_use a boolean_variable (isTurnOfPlayerOne).

$(document).ready(function() {
_ let isTurnOfPlayerOne_= true;
 _$(".grid-item").click(handleClick);

_ function handleClick() {
  _ if ($(this).html()_== "&nbsp;") {
 _    let symbol = (isTurnOfPlayerOne? "x" :_"o");
      $(this).html(symbol);
    } else {
    _ alert("Tile_has already been selected");
_ __}

    isTurnOfPlayerOne =