Question

我在通知系统上工作，我想把一个数字相当于我的通知数量。我使用socket.io发送通知。

我已经测试过在函数外面声明var

我的代码是：

<script type="text/javascript">
var socket = io.connect();
var i = 0;

socket.on('libCourtLotChangeServ', function(contrat){
    $( "#notifBar" ).append( '<div class="innerNotif" style="width: 96%; height: 30px; text-align: left; border: 1px solid black; background-color: white; padding: 3px;">' + 'Le contrat ' + contrat + ' a été modifié' + '</div>');
     function increase(n){
        n++;
        return n;
     }; i = increase(i);
     document.getElementById("notificationNumber").innerHTML = i;
     })
</script>

Answer 1

<script type="text/javascript">
var socket = io.connect();
var i = 0;

// Step 1: add a console.log here and make sure its printed in the console when page loads
console.log(i);

socket.on('libCourtLotChangeServ', function(contrat){
    //Step 2: add a console.log here and make sure subscriber works  
    console.log(contrat);     

    $( "#notifBar" ).append( '<div class="innerNotif" style="width: 96%; height: 30px; text-align: left; border: 1px solid black; background-color: white; padding: 3px;">' + 'Le contrat ' + contrat + ' a été modifié' + '</div>');

    //Step 3: Increment i
    i++;

    //Step 4: Make sure notificationNumber is the ID of the div 
    //Step 5: use jquery to add value inside `notificationNumber` div  
    $("#notificationNumber").html(i); 
    });
</script>

使用socket时增加一个值 - JS

1 个答案: