如何从表情符号中删除字符串中的所有字符

Question

此函数当前使用正则表达式从字符串中删除所有表情符号字符。如何将其反转，以便删除除表情符号字符之外的所有字符？

＆＃13;

＆＃13;

var ranges = [
  '\ud83c[\udf00-\udfff]', // U+1F300 to U+1F3FF
  '\ud83d[\udc00-\ude4f]', // U+1F400 to U+1F64F
  '\ud83d[\ude80-\udeff]'  // U+1F680 to U+1F6FF
];

function removeEmoji() {
  var str = $('#emoji').html();
 
  str = str.replace(new RegExp(ranges.join('|'), 'g'), '');
  $("#emoji").html(str);
}

$('button').on('click', function() {
  removeEmoji();
})

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="emoji">
  <li></li>
  <li>or Smiling Face</li>
  <li>or  Smiling Face</li>
  <li>or Smiling Face</li>
  <li></li>
  <li>or Smiling Face</li>
  <li>or  Smiling Face</li>
  <li>or Smiling Face</li>
</ul>

<button>Push Me</button>

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Answer 1

只需将str.replace()替换为str.match()！

请注意，我已从您的答案中复制了此片段，并且正在获取并替换<ul>的整个html。这包括<li>元素。

var ranges = [
  '\ud83c[\udf00-\udfff]', // U+1F300 to U+1F3FF
  '\ud83d[\udc00-\ude4f]', // U+1F400 to U+1F64F
  '\ud83d[\ude80-\udeff]'  // U+1F680 to U+1F6FF
];

function removeEmoji() {
  var str = $('#emoji').html();
 
  str = str.match(new RegExp(ranges.join('|'), 'g'), '');
  $("#emoji").html(str);
}

$('button').on('click', function() {
  removeEmoji();
})

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="emoji">
  <li></li>
  <li>or Smiling Face</li>
  <li>or  Smiling Face</li>
  <li>or Smiling Face</li>
  <li></li>
  <li>or Smiling Face</li>
  <li>or  Smiling Face</li>
  <li>or Smiling Face</li>
</ul>

<button>Push Me</button>