循环遍历一个数组,另一个数组使用javascript

时间:2015-03-19 05:47:57

标签: javascript jquery loops filter

我有一个过滤函数,需要根据输入字段的值检查元素数组。我最初使用 this solution ,但在输入第二个或第三个字词时,它会重新评估所有结果。

这是我的情况的 Fiddle

目前,如果我输入'fish',它将只返回包含'fish'的行,到目前为止一直很好。如果我也输入'yellow',那么'fish yellow',它会返回'Fish'和'Parrot',当我真的希望它仍然只返回'Fish'时,因为它是唯一包含所有术语的行在输入字段中。

所以不要像这样过滤:

input value = "Term1 Term2 Term3"

  1. Term1,重新开始,然后
  2. Term2,重新开始,然后
  3. Term3,重新开始......
  4. 有没有办法像这样过滤'jo'数组:

    1. Term1,然后
    2. Term1和Term2,然后
    3. Term1和Term2以及Term3等?
    4. 下面,我尝试将输入字段中的单词数推入另一个数组,然后尝试让它按顺序循环遍历所有单词,但它无法正常工作:(

      HTML

      <input id="filter-field" placeholder="Search" type="text" />
      
      <table cellspacing="0" cellpadding="0" >
          <thead>
              <tr>
                  <th>Pet</th>
                  <th>Colour</th>
              </tr>
          </thead>
          <tbody>
              <tr>    
                  <td>cat</td>
                  <td>white</td>
              </tr>
              <tr>
                  <td>dog</td>
                  <td>black</td>
              </tr>
              <tr>
                  <td>parrot</td>
                  <td>yellow</td>
              </tr>
              <tr>
                  <td>fish</td>
                  <td>yellow</td>
              </tr>
              <tr>
                  <td>hamster</td>
                  <td>black</td>
              </tr>
          </tbody>
      </table>
      

      的jQuery

      $("#filter-field").on('input', function() {
      
              // Split the current value of searchInput
              var data = this.value.split(" "),
                  inputLength = $("#filter-field").val().length;
      
              // Create a jquery object of the rows
              var jo = $("table > tbody").find("tr");
      
              if (this.value == "") {
                  jo.show();
                  return;
              }
      
              // Hide all the rows
              jo.hide();
      
              jo.filter(function() {
                  var $t = $(this),
                      textField = $('#filter-field').val().split(" "),
                      wordCount = textField.length - 1, // Get length of array, then subtract 1 so 'word #1' matches 'position 0' in array
                      wordCounter = [];
      
                  // I wanted this to end up as [1, 2, 3, 4 etc] to somehow check each word against 'jo', but each .push() simply adds 1 to the first array value
                  wordCounter.push(wordCount);
      
                  // I want this to check for 'word A', then if I enter further words, 'word A and word B' etc
                  if ($t.is(":contains('" + textField[wordCounter] + "')")) {
                      return true;
                  } else {
                      return false;
                  }
      
              }).show();
      });
      

3 个答案:

答案 0 :(得分:4)

你接近问题的方式看起来很尴尬。我觉得这样的事情应该可以正常工作:

        jo.filter(function() {
            var $t = $(this),
                textField = $('#filter-field').val().split(" ");

            for(var i=0; i<textField.length; i++)
            {
                if (!$t.is(":contains('" + textField[i] + "')"))
                {
                    return false;
                }
            }
            return true;

        }).show();

答案 1 :(得分:0)

我认为您应该使用原始代码https://jsfiddle.net/L83j3p79/4/

match示例
jo.filter(function() {
         var textField = $.trim($('#filter-field').val()).split(" ");
         var theSearch = textField.join("|");
         return (this.textContent || this.innerText).match(theSearch);
}).show();

答案 2 :(得分:0)

尝试

&#13;
&#13;
var input = $("#filter-field")
,  tr = $("table tbody tr");

input.on("input", function(e) {
  var val = e.target.value
  , term = /\s/.test(val) ? val.split(/\s/) : [val]
  , res = $.map(tr.find("td"), function(elem) {
            var el = $(elem) || elem;
            return term.length === 1 
                   ? $.inArray(el.html(), term) !== -1 
                     && el.parent().show() 
                   : $.inArray(el.html(), term) !== -1 
                     && $.inArray(el.siblings(el.nodeName).html(), term) !== -1 
                     ? el.parent().show() 
                     : el.parent().hide() && null
  }).filter(Boolean);
  if (!val.length) { tr.hide() };
});
&#13;
table tbody tr {
  display: none;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<input id="filter-field" placeholder="Search" type="text" />

<table cellspacing="0" cellpadding="0">
  <thead>
    <tr>
      <th>Pet</th>
      <th>Colour</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>cat</td>
      <td>white</td>
    </tr>
    <tr>
      <td>dog</td>
      <td>black</td>
    </tr>
    <tr>
      <td>parrot</td>
      <td>yellow</td>
    </tr>
    <tr>
      <td>fish</td>
      <td>yellow</td>
    </tr>
    <tr>
      <td>hamster</td>
      <td>black</td>
    </tr>
  </tbody>
</table>
&#13;
&#13;
&#13;

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