Vérification de la valeur du bouton radio en Javascript

Question

Je développe un exemple de projet nommé: Tennis Club Management en utilisant javascript, HTML, CSS, Bootstrap. Dans ce projet, j'ai une page managePlayers.html dans laquelle il y a deux boutons Ajouter des joueurs et afficher les joueurs . En cliquant sur le bouton Ajouter des joueurs , un tableau avec des champs de saisie apparaît ci-dessous, qui contient ID, DOB, Nom, Sexe, Contact, 2 boutons radio pour le sexe un bouton ENREGISTRER. .

Remarque: Ce que je dois faire, c'est que lorsque je clique sur le bouton Enregistrer , il doit vérifier si l'une des radios est sélectionnée ou non (Sexe: homme / femme .. dans ce cas). Je n'ai pas encore compris, voici les fichiers de code et les captures d'écran

Lien jsfiddle: https://jsfiddle.net/mohitsharma1991/40yz7tv6/1/

index.js

//---------------------TESTING CODE FOR DISPLAYING TABLE FOR ADDING CUSTOMER INFORMATION--------------- 


function addplayers() {

    // playerIDvalue += 1;
    document.querySelector("#customerregistration").style.display = "block";
    if (istableCreated) {
        document.querySelector("#table-responsive").style.display = "none";
    }
    // document.querySelector(".playerID").value = playerIDvalue;
}



//--------------------------TESTING CODE FOR SAVING CUSTOMER INFORMATION OF MANAGE PLAYERS PAGE-----------------------------



function savePlayer() {
    console.log("data saved successfully...");
    var playerBirthday = document.querySelector(".playerbirthday").value;
    var playerName = document.querySelector(".playername").value;
    var playerContact = document.querySelector(".playercontact").value;
    var playerAddress = document.querySelector(".playeraddress").value;
    var playerGender = document.querySelector('input[name="gender"]:checked').value;
    var playerID = document.querySelector(".playerID").value;


    var customerIDProof = document.querySelector(".customeridproof").value;
    var customerIDProofTextBox = document.querySelector(".customeridprooftextbox").value;
    var membershipFor = document.querySelector(".membershipfor").value;
    var membershipType = document.querySelector(".membershiptype").value;
    //console.log(playerBirthday,playerName,playerContact,playerAddress,playerGender,customerIDProof,customerIDProofTextBox,membershipFor,membershipType);


    if (playerID == "") {
        document.querySelector(".playerIDlabel").innerHTML = "*Cannot be blank"
        // console.log("ID cannot be blank");
    }
    else if (playerBirthday == "") {
        document.querySelector(".playerbirthdaylabel").innerHTML = "*Select Date"
    }
    else if (playerContact == "") {
        document.querySelector(".playercontactlabel").innerHTML = "*Cannot be blank";
    }
    else if (playerName == "") {
        document.querySelector(".playernamelabel").innerHTML = "*Cannot be blank";
    }
    else if ((!playerGender == "Male") && (!playerGender == "Female")) {
        document.querySelector(".genderlabel").innerHTML = "*Cannot be blank";
    }
    else if (playerAddress == "") {
        document.querySelector(".playeraddresslabel").innerHTML = "*Cannot be blank";
    }
    else if (customerIDProof == "---Select---") {
        document.querySelector(".customeridprooflabel").innerHTML = "*Select value";
    }
    else if (customerIDProofTextBox == "") {
        document.querySelector(".customeridprooflabel").innerHTML = "*Cannot be blank";
    }
    else if (membershipFor == "---Select---") {
        document.querySelector(".membershipforlabel").innerHTML = "*Select value";
    }
    else if (membershipType == "---Select---") {
        document.querySelector(".membershiptypelabel").innerHTML = "*Select value";
    }
    else {
        addPlayerList.push({
            "ID": playerIDvalue,
            "DOB": playerBirthday,
            "Gender": playerGender,
            "Address": playerAddress,
            "IDProof": customerIDProof,
            "IDProofValue": customerIDProofTextBox,
            "membershipFor": membershipFor,
            "membershipType": membershipType,
            "playerContact": playerContact,
            "playerName": playerName
        });
    }




    console.log(addPlayerList);
    return false;
}

managePlayers.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Manage Players</title>

    <!-- ADDING FONT AWESOME CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

    <!-- ADDING BOOTSTRAP CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css"
        integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">

    <!-- ADDING STYLE.CSS -->
    <link rel="stylesheet" href="/css/style.css">

</head>

<body class="managePlayers">

    <!-- ADDING BUTTONS LIKE SHOW PLAYERS, ADD PLAYERS USING CSS BOOTSTRAP -->

    <button type="button" class="btn btn-secondary showplayers" onclick="showplayers();">Show Players</button>
    <button type="button" class="btn btn-secondary addplayers" onclick="addplayers()">Add Players</button>

    <!-- CREATING REGISTRATION FORM OF CUSTOMER -->

    <table class="customerregistration" id="customerregistration">
        <tr>
            <td>
                <Label>ID :</Label>
            </td>
            <td>
                <input type="text" class="playerID" id="playerID">
            </td>
            <td>
                <label class="playerIDlabel"></label>
            </td>
        </tr>
        <tr>
            <td>
                <label>DOB :</label>
            </td>
            <td>
                <input type="date" id="playerbirthday" class="playerbirthday">
            </td>
            <td>
                <label class="playerbirthdaylabel"></label>
            </td>
        </tr>
        <tr>
            <td>
                <label>Name :</label>
            </td>
            <td>
                <input type="text" class="playername" id="playername">
            </td>
            <td>
                <label class="playernamelabel"></label>
            </td>
        </tr>

        <tr>
            <td>
                <label>Gender :</label>
            </td>
            <td>
                <input type="radio" name="gender" value="female" class="playergender" id="femaleplayer"> Female
                <input type="radio" name="gender" value="male" class="playergender" id="maleplayer"> Male
            </td>
            <td>
                <label class="genderlabel"></label>
            </td>
        </tr>

        <tr>
            <td>
                <label>Contact :</label>
            </td>
            <td>
                <input type="text" class="playercontact" id="playercontact">
            </td>
            <td>
                <label class="playercontactlabel"></label>
            </td>
        </tr>

        <tr>
            <td>
                <label>Address :</label>
            </td>
            <td>
                <textarea class="playeraddress" id="playeraddress" cols="20" rows="3"></textarea>
            </td>
            <td>
                <label class="playeraddresslabel"></label>
            </td>
        </tr>

        <tr>
            <td>
                <label>ID Proof :</label>
                <select class="customeridproof" id="customeridproof">
                    <option value="select">---Select---</option>
                    <option value="license">License</option>
                    <option value="aadhaar">Aadhaar</option>
                    <option value="passport">Passport</option>
                </select>
            </td>
            <td>
                <input type="text" class="customeridprooftextbox">
            </td>
            <td>
                <label class="customeridprooflabel"></label>
            </td>
        </tr>

        <tr>
            <td>
                <label>Membership For :</label>
            </td>
            <td>
                <select class="membershipfor" id="membershipfor">
                    <option value="select">---Select---</option>
                    <option value="court">Court</option>
                    <option value="tournament">Tournament</option>
                    <option value="both">Both</option>
                </select>
            </td>
            <td>
                <label class="membershipforlabel"></label>
            </td>
        </tr>

        <tr>
            <td>
                <label>Membership Type :</label>
            </td>
            <td>
                <select class="membershiptype" id="membershiptype">
                    <option value="select">---Select---</option>
                    <option value="monthly">Monthly</option>
                    <option value="halfyearly">Half Yearly</option>
                    <option value="annually">Annually</option>
                </select>
            </td>
            <td>
                <label class="membershiptypelabel"></label>
            </td>
        </tr>
        <tr>
            <td>
                <button type="button" class="btn btn-success saveplayer" onclick="savePlayer()">SAVE</button>
            </td>
        </tr>
    </table>



    <!-- ADDING BOOTSTRAP JS -->
    <!-- JS, Popper.js, and jQuery -->
    <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
        integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
        crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"
        integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo"
        crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"
        integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI"
        crossorigin="anonymous"></script>

    <!-- ADDING INDEX.JS -->
    <script src="/js/sidebar.js"></script>
    <script src="/js/index.js"></script>

</body>

</html>

Captures d'écran

Une solution s'il vous plaît?

Answer 1

Vous pouvez simplement utiliser la propriété cochée de votre entrée pour voir laquelle genderétait checkedlors de l'enregistrement du lecteur et la pousser valuevers votrearray

La checkedpropriété renvoie trueou falsepour chaque bouton radio et attribuera un valueà votre var playerGender- Dans l' exemple de ce que vous avez pas sélectionné aucun bouton radio var playerGendersera indéfini et nous le message d'erreur peut.

J'ai ajouté le code de travail dans la démo et si vous ne sélectionnez rien dans le sexe, vous verrez ce message *Cannot be blanked

Démo de travail

// --------------TESTING CODE FOR LOGIN PAGE LOGIN BUTTON CLICK----------------

var istableCreated = false;
var email, password, playerIDvalue = 0;
var addPlayerList = [];
var addtournamentsList = [];
var addTrainersList = [];
var addMatchList = [];
var addFeesList = [];


//------------------------------------"MANAGE PLAYERS PAGE"----------------------------------

//--------------------------------TESTING CODE FOR SHOWING PLAYERS OF MANAGE PLAYERS PAGE--------------------------
function showplayers() {
  document.querySelector("#customerregistration").style.display = "none";

  if (istableCreated == false) {


    istableCreated = true;

    var myTable = document.createElement("table");
    myTable.className = "table-responsive";
    myTable.id = "table-responsive";
    myTable.style.marginLeft = "15%";
    document.body.appendChild(myTable);

    var maintr = document.createElement("tr");
    document.body.appendChild(myTable).appendChild(maintr);

    var thID = document.createElement("th");
    thID.innerHTML = "ID";
    document.body.appendChild(myTable).appendChild(maintr).appendChild(thID);

    var thplayerName = document.createElement("th");
    thplayerName.innerHTML = "Player Name";
    document.body.appendChild(myTable).appendChild(maintr).appendChild(thplayerName);

    // var thDOB = document.createElement("th");
    // thDOB.innerHTML = "DOB";
    // document.body.appendChild(myTable).appendChild(maintr).appendChild(thDOB);

    // var thGender = document.createElement("th");
    // thGender.innerHTML = "Gender";
    // document.body.appendChild(myTable).appendChild(maintr).appendChild(thGender);

    var thAddress = document.createElement("th");
    thAddress.innerHTML = "Address";
    document.body.appendChild(myTable).appendChild(maintr).appendChild(thAddress);

    // var thIDProof = document.createElement("th");
    // thIDProof.innerHTML = "ID Proof";
    // document.body.appendChild(myTable).appendChild(maintr).appendChild(thIDProof);

    // var thIDProofValue = document.createElement("th");
    // thIDProofValue.innerHTML = "Value";
    // document.body.appendChild(myTable).appendChild(maintr).appendChild(thIDProofValue);

    // var thmembershipFor = document.createElement("th");
    // thmembershipFor.innerHTML = "Membership For";
    // document.body.appendChild(myTable).appendChild(maintr).appendChild(thmembershipFor);

    // var thmembershipType = document.createElement("th");
    // thmembershipType.innerHTML = "Membership Type";
    // document.body.appendChild(myTable).appendChild(maintr).appendChild(thmembershipType);

    var thcontact = document.createElement("th");
    thcontact.innerHTML = "Contact";
    document.body.appendChild(myTable).appendChild(maintr).appendChild(thcontact);


    //-------------TESTING CODE FOR FETCHING ONLINE DATA FROM API AND CREATING TABLE ROWS--------------


    var xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function() {
      if (this.readyState == 4 && this.status == 200) {
        // console.log(this.responseText);
        var JSONarr = JSON.parse(this.responseText);
        console.log(JSONarr);

        // ----------SUPER TESTING CODE-----------

        for (var i = 0; i < JSONarr.length; i++) {
          console.log(JSONarr[i].id, JSONarr[i].name, JSONarr[i].address.city, JSONarr[i].address.zipcode);

          var myTr = document.createElement("tr");
          document.body.appendChild(myTable).appendChild(myTr);
          var tdID = document.createElement("td");
          tdID.innerHTML = `${JSONarr[i].id}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdID); var tdplayerName = document.createElement("td"); tdplayerName.innerHTML = `${JSONarr[i].name}`;
          document.body.appendChild(myTable).appendChild(myTr).appendChild(tdplayerName);

          var tdAddress = document.createElement("td");
          tdAddress.innerHTML = `${JSONarr[i].address.city}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdAddress); var tdContact = document.createElement("td"); tdContact.innerHTML = `${JSONarr[i].phone}`;
          document.body.appendChild(myTable).appendChild(myTr).appendChild(tdContact);


        }

      }
    };
    xhttp.open("GET", "https://jsonplaceholder.typicode.com/users", true);
    xhttp.send();






    /*
    for (var i = 0; i < addPlayerList.length; i++) {

        console.log(addPlayerList.length);
        var myTr = document.createElement("tr");
        document.body.appendChild(myTable).appendChild(myTr);
        var tdID = document.createElement("td");
        tdID.innerHTML = `${addPlayerList[i].ID}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdID); var tdplayerName = document.createElement("td"); tdplayerName.innerHTML = `${addPlayerList[i].playerName}`;
        document.body.appendChild(myTable).appendChild(myTr).appendChild(tdplayerName);

        var tdDOB = document.createElement("td");
        tdDOB.innerHTML = `${addPlayerList[i].DOB}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdDOB); var tdGender = document.createElement("td"); tdGender.innerHTML = `${addPlayerList[i].Gender}`;
        document.body.appendChild(myTable).appendChild(myTr).appendChild(tdGender);

        var tdAddress = document.createElement("td");
        tdAddress.innerHTML = `${addPlayerList[i].Address}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdAddress); var tdIDProof = document.createElement("td"); tdIDProof.innerHTML = `${addPlayerList[i].IDProof}`;
        document.body.appendChild(myTable).appendChild(myTr).appendChild(tdIDProof);

        var tdIDProofValue = document.createElement("td");
        tdIDProofValue.innerHTML = `${addPlayerList[i].IDProofValue}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdIDProofValue); var tdmembershipFor = document.createElement("td"); tdmembershipFor.innerHTML = `${addPlayerList[i].membershipFor}`;
        document.body.appendChild(myTable).appendChild(myTr).appendChild(tdmembershipFor);

        var tdmembershipType = document.createElement("td");
        tdmembershipType.innerHTML = `${addPlayerList[i].membershipType}`; document.body.appendChild(myTable).appendChild(myTr).appendChild(tdmembershipType); var tdContact = document.createElement("td"); tdContact.innerHTML = `${addPlayerList[i].playerContact}`;
        document.body.appendChild(myTable).appendChild(myTr).appendChild(tdContact);
    }
    */
  } else {
    document.querySelector("#table-responsive").style.display = "block";
  }
}



//---------------------TESTING CODE FOR DISPLAYING TABLE FOR ADDING CUSTOMER INFORMATION--------------- 


function addplayers() {

  // playerIDvalue += 1;
  document.querySelector("#customerregistration").style.display = "block";
  if (istableCreated) {
    document.querySelector("#table-responsive").style.display = "none";
  }
  // document.querySelector(".playerID").value = playerIDvalue;
}



//--------------------------TESTING CODE FOR SAVING CUSTOMER INFORMATION OF MANAGE PLAYERS PAGE-----------------------------



function savePlayer() {
  console.log("data saved successfully...");
  var playerBirthday = document.querySelector(".playerbirthday").value;
  var playerName = document.querySelector(".playername").value;
  var playerContact = document.querySelector(".playercontact").value;
  var playerAddress = document.querySelector(".playeraddress").value;
  var playerID = document.querySelector(".playerID").value;

  var playerGender
  if (document.getElementById('femaleplayer').checked) {
    playerGender = document.getElementById('femaleplayer').value;
  } else if (document.getElementById('maleplayer').checked) {
    playerGender = document.getElementById('maleplayer').value;
  }

   if (playerGender == undefined) {
document.querySelector(".genderlabel").innerHTML = "*Cannot be blank";

  }

  var customerIDProof = document.querySelector(".customeridproof").value;
  var customerIDProofTextBox = document.querySelector(".customeridprooftextbox").value;
  var membershipFor = document.querySelector(".membershipfor").value;
  var membershipType = document.querySelector(".membershiptype").value;
  // console.log(playerBirthday,playerName,playerContact,playerAddress,playerGender,customerIDProof,customerIDProofTextBox,membershipFor,membershipType);


  if (playerID == "") {
    document.querySelector(".playerIDlabel").innerHTML = "*Cannot be blank"
    // console.log("ID cannot be blank");
  } else if (playerBirthday == "") {
    document.querySelector(".playerbirthdaylabel").innerHTML = "*Select Date"
  } else if (playerContact == "") {
    document.querySelector(".playercontactlabel").innerHTML = "*Cannot be blank";
  } else if (playerName == "") {
    document.querySelector(".playernamelabel").innerHTML = "*Cannot be blank";
  } else if ((!playerGender == "Male") && (!playerGender == "Female")) {
    document.querySelector(".genderlabel").innerHTML = "*Cannot be blank";
  } else if (playerAddress == "") {
    document.querySelector(".playeraddresslabel").innerHTML = "*Cannot be blank";
  } else if (customerIDProof == "---Select---") {
    document.querySelector(".customeridprooflabel").innerHTML = "*Select value";
  } else if (customerIDProofTextBox == "") {
    document.querySelector(".customeridprooflabel").innerHTML = "*Cannot be blank";
  } else if (membershipFor == "---Select---") {
    document.querySelector(".membershipforlabel").innerHTML = "*Select value";
  } else if (membershipType == "---Select---") {
    document.querySelector(".membershiptypelabel").innerHTML = "*Select value";
  } else {
    addPlayerList.push({
      "ID": playerIDvalue,
      "DOB": playerBirthday,
      "Gender": playerGender,
      "Address": playerAddress,
      "IDProof": customerIDProof,
      "IDProofValue": customerIDProofTextBox,
      "membershipFor": membershipFor,
      "membershipType": membershipType,
      "playerContact": playerContact,
      "playerName": playerName
    });
  }

  console.log(addPlayerList);
  return false;
}

form {
  margin: auto;
  /* nice thing of auto margin if display:flex; it center both horizontal and vertical :) */
  width: 30%;
}

img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 25%;
  height: 25%;
  margin-top: 3%;
  margin-bottom: 1.5%;
}

.login {
  display: table-cell;
  text-align: center;
  vertical-align: middle;
}

label {
  font-weight: bolder;
}

.labelemailpassworderror {
  color: red;
  font-size: 10px;
  text-align: left;
}

.labelemailerror {
  color: red;
  font-size: 10px;
  text-align: center;
}

.labelpassworderror {
  color: red;
  font-size: 10px;
  text-align: center;
}

h3 {
  text-align: center;
}

h5 {
  text-align: center;
  color: green;
}

.forgotpassword {
  text-align: center;
  font-size: 10px;
  /* margin-left: 25%; */
}

.signup {
  text-align: center;
  font-size: 10px;
}

span {
  color: #1a73e8;
}

span:hover {
  color: purple;
}


/* ---------------- SETTING CSS PROPERTIES OF PROFILE PAGE---------------- */

body {
  margin-top: 0;
  font-family: "Lato", sans-serif;
}

.sidebar {
  top: 0;
  left: 0;
  margin: 0;
  padding: 0;
  width: 200px;
  background-color: #f1f1f1;
  position: fixed;
  height: 100%;
  overflow: auto;
}

.sidebar a {
  display: block;
  color: black;
  padding: 16px;
  text-decoration: none;
}

.sidebar a.active {
  background-color: #4CAF50;
  color: white;
}

.sidebar a:hover:not(.active) {
  background-color: #555;
  color: white;
}

div.content {
  margin-left: 200px;
  padding: 1px 16px;
  height: 1000px;
}

@media screen and (max-width: 700px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .sidebar a {
    float: left;
  }
  div.content {
    margin-left: 0;
  }
}

@media screen and (max-width: 400px) {
  .sidebar a {
    text-align: center;
    float: none;
  }
}

.editadminprofile {
  float: right;
}


/* ---------------- SETTING CSS PROPERTIES OF MANAGE PLAYERS PAGE---------------- */

.showplayers {
  margin-right: 30%;
  margin-top: 5%;
  margin-bottom: 2%;
  float: right;
  width: 15%;
}

.addplayers {
  margin-right: 3%;
  margin-top: 5%;
  margin-bottom: 2%;
  float: right;
  width: 15%;
}

.playeraddress {
  resize: none;
}


/* ---------------- SETTING CSS PROPERTIES OF MANAGE TRAINERS PAGE---------------- */

.showtrainers {
  margin-right: 30%;
  margin-top: 5%;
  float: right;
  width: 15%;
}

.addtrainers {
  margin-right: 3%;
  margin-top: 5%;
  float: right;
  width: 15%;
}


/* ---------------- SETTING CSS PROPERTIES OF MANAGE TOURNAMENTS PAGE---------------- */

.showtournaments {
  margin-right: 30%;
  margin-top: 5%;
  float: right;
  width: 15%;
}

.addtournaments {
  margin-right: 3%;
  margin-top: 5%;
  float: right;
  width: 15%;
}


/* ---------------- SETTING CSS PROPERTIES OF MANAGE MATCHES PAGE---------------- */

.showmatches {
  margin-right: 30%;
  margin-top: 5%;
  float: right;
  width: 15%;
}

.addmatches {
  margin-right: 3%;
  margin-top: 5%;
  float: right;
  width: 15%;
}


/* ---------------- SETTING CSS PROPERTIES OF MANAGE FEES PAGE---------------- */

.showfees {
  margin-right: 30%;
  margin-top: 5%;
  float: right;
  width: 15%;
}

.addfees {
  margin-right: 3%;
  margin-top: 5%;
  float: right;
  width: 15%;
}


/* ---------------- SETTING CSS PROPERTIES OF TABLE OF MANAGE PLAYER PAGE ---------------- */

table {
  table-layout: fixed;
}

table th,
table td {
  overflow: hidden;
}

th {
  width: 5%;
}


/*-------------- SETING CSS PROPERTIES OF CUSTOMER REGISTRATION FORM-------------*/

.customerregistration {
  margin-top: 5%;
  display: none;
  float: right;
  margin-right: 30%;
}

.customeraddress {
  resize: none;
}


/*-------------- SETING CSS PROPERTIES OF TRAINER REGISTRATION FORM-------------*/

.trainerregistration {
  margin-top: 5%;
  float: right;
  margin-right: 32%;
  display: none;
}

.traineraddress {
  resize: none;
}


/*-------------- SETING CSS PROPERTIES OF TOURNAMENT REGISTRATION FORM-------------*/

.tournamentregistration {
  display: none;
  margin-top: 5%;
  float: right;
  margin-right: 32%;
}


/*---------------SETTING CSS PROPERTIES OF MATCH REGISTRATION-----------------*/

.matchregistration {
  display: none;
  margin-top: 5%;
  float: right;
  margin-right: 35%;
}


/* -------------SETTING CSS PROPERTIES OF MANAGE FEES---------------------- */

.feesregistration {
  margin-top: 5%;
  float: right;
  margin-right: 35%;
}

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Manage Players</title>

  <!-- ADDING FONT AWESOME CSS -->
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

  <!-- ADDING BOOTSTRAP CSS -->
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">

  <!-- ADDING STYLE.CSS -->
  <link rel="stylesheet" href="/css/style.css">

</head>

<body class="managePlayers">

  <!-- ADDING BUTTONS LIKE SHOW PLAYERS, ADD PLAYERS USING CSS BOOTSTRAP -->

  <button type="button" class="btn btn-secondary showplayers" onclick="showplayers();">Show Players</button>
  <button type="button" class="btn btn-secondary addplayers" onclick="addplayers()">Add Players</button>

  <!-- CREATING REGISTRATION FORM OF CUSTOMER -->

  <table class="customerregistration" id="customerregistration">
    <tr>
      <td>
        <Label>ID :</Label>
      </td>
      <td>
        <input type="text" class="playerID" id="playerID">
      </td>
      <td>
        <label class="playerIDlabel"></label>
      </td>
    </tr>
    <tr>
      <td>
        <label>DOB :</label>
      </td>
      <td>
        <input type="date" id="playerbirthday" class="playerbirthday">
      </td>
      <td>
        <label class="playerbirthdaylabel"></label>
      </td>
    </tr>
    <tr>
      <td>
        <label>Name :</label>
      </td>
      <td>
        <input type="text" class="playername" id="playername">
      </td>
      <td>
        <label class="playernamelabel"></label>
      </td>
    </tr>

    <tr>
      <td>
        <label>Gender :</label>
      </td>
      <td>
        <input type="radio" name="gender" value="female" class="playergender" id="femaleplayer" required> Female
        <input type="radio" name="gender" value="male" class="playergender" id="maleplayer" required> Male
      </td>
      <td>
        <label class="genderlabel"></label>
      </td>
    </tr>

    <tr>
      <td>
        <label>Contact :</label>
      </td>
      <td>
        <input type="text" class="playercontact" id="playercontact">
      </td>
      <td>
        <label class="playercontactlabel"></label>
      </td>
    </tr>

    <tr>
      <td>
        <label>Address :</label>
      </td>
      <td>
        <textarea class="playeraddress" id="playeraddress" cols="20" rows="3"></textarea>
      </td>
      <td>
        <label class="playeraddresslabel"></label>
      </td>
    </tr>

    <tr>
      <td>
        <label>ID Proof :</label>
        <select class="customeridproof" id="customeridproof">
          <option value="select">---Select---</option>
          <option value="license">License</option>
          <option value="aadhaar">Aadhaar</option>
          <option value="passport">Passport</option>
        </select>
      </td>
      <td>
        <input type="text" class="customeridprooftextbox">
      </td>
      <td>
        <label class="customeridprooflabel"></label>
      </td>
    </tr>

    <tr>
      <td>
        <label>Membership For :</label>
      </td>
      <td>
        <select class="membershipfor" id="membershipfor">
          <option value="select">---Select---</option>
          <option value="court">Court</option>
          <option value="tournament">Tournament</option>
          <option value="both">Both</option>
        </select>
      </td>
      <td>
        <label class="membershipforlabel"></label>
      </td>
    </tr>

    <tr>
      <td>
        <label>Membership Type :</label>
      </td>
      <td>
        <select class="membershiptype" id="membershiptype">
          <option value="select">---Select---</option>
          <option value="monthly">Monthly</option>
          <option value="halfyearly">Half Yearly</option>
          <option value="annually">Annually</option>
        </select>
      </td>
      <td>
        <label class="membershiptypelabel"></label>
      </td>
    </tr>
    <tr>
      <td>
        <button type="button" class="btn btn-success saveplayer" onclick="savePlayer()">SAVE</button>
      </td>
    </tr>
  </table>



  <!-- ADDING BOOTSTRAP JS -->
  <!-- JS, Popper.js, and jQuery -->
  <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>

  <!-- ADDING INDEX.JS -->
  <script src="/js/sidebar.js"></script>
  <script src="/js/index.js"></script>

</body>

</html>

Answer 2

tu peux essayer quelque chose comme ça

var gender = document.querySelector('input[name="gender"]').checked ;
if(gender == true){
  return true;
 }else {
  return false;
 }

Answer 3

utilisez un script pour vérifier si l'entrée radio est sélectionnée ou non.

    //getting value of radio button
    let radioInput = $('input[name=gender]:checked').val();

    //checking for its value, if it is undefined nothing is selected.
    if(radioInput){
       //do something with value.
    }else{
      alert('Nothing selected');
    }