更改具有相同类别的多个div中的文本on

时间:2018-01-29 13:28:15

标签: javascript jquery html css innerhtml

我有一系列足球比赛,并想用“? - ?”取代所有分数当按下按钮并切换回来再次按下时显示分数。

div {
  display: table;
}

div div {
  display: table-row;
}

div div div {
  display: table-cell;
}

.score {
  color: blue;
  padding: 10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>Hide scores!</button>
<br>  <br>
<div class="table">

  <div class="match">
    <div class="team1">Manchester United</div>
    <div class="score">1-1</div>
    <div class="team2">Liverpool</div>
  </div>

  <div class="match">
    <div class="team1">Juventus</div>
    <div class="score">2-0</div>
    <div class="team2">Inter Milan</div>
  </div>

  <div class="match">
    <div class="team1">Real Madrid</div>
    <div class="score">1-4</div>
    <div class="team2">Barcelona</div>
  </div>

  <div class="match">
    <div class="team1">Dortmund</div>
    <div class="score">3-0</div>
    <div class="team2">Bayern Munich</div>
  </div>

  <div class="match">
    <div class="team1">PSG</div>
    <div class="score">0-1</div>
    <div class="team2">Marseille</div>
  </div>

</div>

我已尝试使用getElementById和innerHTML,但由于匹配数量较多,我宁愿使用getElementsByClassName。我见过人们为此推荐querySelectorAll(),但我无法让脚本工作。

另一种方法是运行一个脚本,用具有相同类的div中的问号替换所有数字。

请使用this fiddle

帮助我

6 个答案:

答案 0 :(得分:2)

此处的解决方案仅使用querySelector选择button.table元素来切换课程。

其余的都是CSS,所以不需要循环。

请注意,这会将您的.score文字内容与data-score属性进行交换。

&#13;
&#13;
document.querySelector("button")
  .addEventListener("click", function() {
    document.querySelector("div.table").classList.toggle("hide-score");
  });
&#13;
.table .score:after {
  content: attr(data-score);
}

.table.hide-score .score:after {
  content: "?-?";
}
&#13;
<button>Hide scores!</button>

<br>
<br>

<div class="table">

  <div class="match">
    <div class="team1">Manchester United</div>
    <div class="score" data-score="1-1"></div>
    <div class="team2">Liverpool</div>
  </div>

  <div class="match">
    <div class="team1">Juventus</div>
    <div class="score" data-score="2-0"></div>
    <div class="team2">Inter Milan</div>
  </div>

  <div class="match">
    <div class="team1">Real Madrid</div>
    <div class="score" data-score="1-4"></div>
    <div class="team2">Barcelona</div>
  </div>

  <div class="match">
    <div class="team1">Dortmund</div>
    <div class="score" data-score="3-0"></div>
    <div class="team2">Bayern Munich</div>
  </div>

  <div class="match">
    <div class="team1">PSG</div>
    <div class="score" data-score="0-1"></div>
    <div class="team2">Marseille</div>
  </div>

</div>
&#13;
&#13;
&#13;

要支持旧浏览器,您可以将分数保留为文本内容,但将其放在span旁边另一个<span>?-?</span>,然后配置CSS以隐藏{{1并根据需要显示其余部分。

答案 1 :(得分:1)

使用简单的旧Javascript

Here is a fiddle

但我不得不承认,@ SkinnyPete的方式更好更容易理解!如果你只是隐藏得分,你就会使用它。这是最好的方式。

// Mandatory JS code 

答案 2 :(得分:1)

const score = document.getElementsByClassName('score')
const button = document.getElementById("hide")
const initialState = []

for(let i = 0; i < score.length; i++){
    initialState.push({initial : score[i].innerHTML})
}

button.addEventListener('click', (e) => {
  const dynamicScore = document.getElementsByClassName('score')
  for(let i = 0; i < dynamicScore.length; i++){
     if(dynamicScore[i].innerText === initialState[i].initial){
        dynamicScore[i].innerHTML = "?-?"
     }else{
        dynamicScore[i].innerHTML = initialState[i].initial
     }
  }
})

我添加了一个id&#34; hide&#34;你的按钮一切正常

答案 3 :(得分:1)

如果您不想更改HTML代码

$.each($('.score'), function(key, score) {
  var score_text = $(score).text();
  $(score).data('score', score_text)
})

$('button').click(function() {
	if ($(this).data('hiding-score')) {
  	$(this).data('hiding-score', false);
    $.each($('.score'), function () {
      $(this).text($(this).data('score'));
    });
  } else {
    $(this).data('hiding-score', true);
    $('.score').text('?-?');
  }
})    
div { display:table; }
div div { display:table-row; }
div div div  { display:table-cell; }
.score { color:blue; padding:10px; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>Hide scores!</button>

<br>
<br>

<div class="table">

<div class="match">
<div class="team1">Manchester United</div>
<div class="score">1-1</div>
<div class="team2">Liverpool</div>
</div>

<div class="match">
<div class="team1">Juventus</div>
<div class="score">2-0</div>
<div class="team2">Inter Milan</div>
</div>

<div class="match">
<div class="team1">Real Madrid</div>
<div class="score">1-4</div>
<div class="team2">Barcelona</div>
</div>

<div class="match">
<div class="team1">Dortmund</div>
<div class="score">3-0</div>
<div class="team2">Bayern Munich</div>
</div>

<div class="match">
<div class="team1">PSG</div>
<div class="score">0-1</div>
<div class="team2">Marseille</div>
</div>

</div>

答案 4 :(得分:0)

我建议的解决方案是你利用div上的数据属性来存储分数。即<div class="score" data-for="1" data-against="1">1-1</div>。然后更容易切换值。因为你正在使用jQuery,

// Set the values to ?-?
$('.match .score').html('?-?');

// set the actual scores
$('.match .score').each(function(){
  $(this).html($(this).data('for') + '-' + $(this).data('against'));
});

答案 5 :(得分:0)

我的解决方案:

我会使用临时存储空间。 U可以使用data() - Method

设置每个元素的值
//STORE DATA IN TEMP STORAGE
$( ".score" ).each(function( index ) {
    $(this).data("score-temp", $(this).text());
});

在Click-Event上我会添加一个“hide-score”类来区分这两种状态。如果已设置hide-score,则重置临时存储中的值

$("button").click(function() {
   if ($(".table").hasClass( "hide-score" )) {
     $(".table").removeClass("hide-score");

     //set VALUE FROM TEMP STORAGE
     $( ".score" ).each(function( index ) {
        var score_temp = $(this).data("score-temp" );
        $(this).text(score_temp);
     });  
  }
 else {
   $( ".score" ).text("?-?");   
   $(".table").addClass("hide-score");
 }
});