javascript - 停止设置间隔

Question

我想阻止error处理程序中的这个间隔重复运行。这可能吗？如果可以，怎么做？

// example code
$(document).on('ready',function(){
    setInterval(updateDiv,3000);
});

function updateDiv(){
    $.ajax({
        url: 'getContent.php',
        success: function(data){
            $('.square').html(data);
        },
        error: function(){
            $.playSound('oneday.wav');
            $('.square').html('<span style="color:red">Connection problems</span>');
            // I want to stop it here
        }
    });
}

Answer 1

您需要将返回值设置为setInterval单击处理程序范围内的变量，然后clearInterval()像这样使用：

var interval = null;
$(document).on('ready',function(){
    interval = setInterval(updateDiv,3000);
});

function updateDiv(){
    $.ajax({
        url: 'getContent.php',
        success: function(data){
            $('.square').html(data);
        },
        error: function(){
            clearInterval(interval); // stop the interval
            $.playSound('oneday.wav');
            $('.square').html('<span style="color:red">Connection problems</span>');
        }
    });
}

Answer 2

使用变量并调用clearInterval以停止它。

var interval;

$(document).on('ready',function()
  interval = setInterval(updateDiv,3000);
  });

  function updateDiv(){
    $.ajax({
      url: 'getContent.php',
      success: function(data){
        $('.square').html(data);
      },
      error: function(){
        $.playSound('oneday.wav');
        $('.square').html('<span style="color:red">Connection problems</span>');
        // I want to stop it here
        clearInterval(interval);
      }
    });
  }

Answer 3

您必须将setInterval函数的返回值分配给变量

var interval;
$(document).on('ready',function(){
    interval = setInterval(updateDiv,3000);
});

然后使用clearInterval(interval)再次清除它。

Answer 4

使用这个我希望对你有帮助

var interval;

function updateDiv(){
    $.ajax({
        url: 'getContent.php',
        success: function(data){
            $('.square').html(data);
        },
        error: function(){
            /* clearInterval(interval); */
            stopinterval(); // stop the interval
            $.playSound('oneday.wav');
            $('.square').html('<span style="color:red">Connection problems</span>');
        }
    });
}

function playinterval(){
  updateDiv(); 
  interval = setInterval(function(){updateDiv();},3000); 
  return false;
}

function stopinterval(){
  clearInterval(interval); 
  return false;
}

$(document)
.on('ready',playinterval)
.on({click:playinterval},"#playinterval")
.on({click:stopinterval},"#stopinterval");

Answer 5

我们可以通过调用 clear interval 轻松停止设置的间隔

var count = 0 , i = 5;
var vary = function intervalFunc() {
  count++;
      console.log(count);
    console.log('hello boy');  
    if (count == 10) {
      clearInterval(this);
    }
}

  setInterval(vary, 1500);

Answer 6

var flasher_icon = function (obj) {
    var classToToggle = obj.classToToggle;
    var elem = obj.targetElem;
    var oneTime = obj.speed;
    var halfFlash = oneTime / 2;
    var totalTime = obj.flashingTimes * oneTime;

    var interval = setInterval(function(){
        elem.addClass(classToToggle);
        setTimeout(function() {
            elem.removeClass(classToToggle);
        }, halfFlash);
    }, oneTime);

    setTimeout(function() {
        clearInterval(interval);
    }, totalTime);
};

flasher_icon({
    targetElem: $('#icon-step-1-v1'),
    flashingTimes: 3,
    classToToggle: 'flasher_icon',
    speed: 500
});

.steps-icon{
    background: #d8d8d8;
    color: #000;
    font-size: 55px;
    padding: 15px;
    border-radius: 50%;
    margin: 5px;
    cursor: pointer;
}
.flasher_icon{
  color: #fff;
  background: #820000 !important;
  padding-bottom: 15px !important;
  padding-top: 15px !important;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"> 

<i class="steps-icon material-icons active" id="icon-step-1-v1" title="" data-toggle="tooltip" data-placement="bottom" data-original-title="Origin Airport">alarm</i>