javascript - 防止单击功能多次触发

我试图做一个简单的click函数，但是当我这样做时，它将触发数组中有多少个项目的确切时间。因此，如果单击该按钮，则会显示它触发3次，因为数组中有3个项（湖，腔，太阳）。我的问题是如何防止它触发x次？

var TeamPlayers = [{
  team: 'Lakers',
  Players: ['Russell', 'Clarkson', 'Ingram', 'Randle', 'Zubacs']
}, {
  team: 'Cavs',
  Players: ['Irving', 'Smith', 'LeBron', 'Love', 'Thompson']
}, {
  team: 'Suns',
  Players: ['Ulis', 'Booker', 'Warren', 'Chriss', 'Len']
}]

for (var i = 0; i < TeamPlayers.length; i++) {
  var TeamPlayersVar = TeamPlayers[i].team
  // console.log('outside loop',TeamPlayers[i].team);

  $('.leftPlayer').append('<button class="leftButtons">' + TeamPlayers[i].team + '</button>' + '<br>')
  $(document).on('click', '.leftButtons', function(){
    console.log(this)
  });
}

最佳答案

我建议使用id来做到这一点。那应该解决您的问题。因为点击将被注册为ID

for (var i = 0; i < TeamPlayers.length; i++) {
  var TeamPlayersVar = TeamPlayers[i].team
  // console.log('outside loop',TeamPlayers[i].team);

  $('.leftPlayer').append('<button id="btn'+i+'" class="leftButtons">' + TeamPlayers[i].team + '</button>' + '<br>')
  $("#btn"+i).click(function(){
    console.log(this)
  });
}