停止设置间隔

javascript jquery html setinterval

2022-08-30 04:23:01

我想阻止处理程序中的此间隔重复运行。这有可能吗，如果是，如何实现？error

// 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
        }
    });
}

答案 1

您需要将的返回值设置为单击处理程序范围内的变量，然后按如下方式使用：setIntervalclearInterval()

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>');
        }
    });
}

答案 2

使用变量并调用以停止它。clearInterval

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);
      }
    });
  }