te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - How can I select the first word of every line of a block of text? - Stack Overflow

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    javascript - How can I select the first word of every line of a block of text? - Stack Overflow

    programmeradmin4浏览0评论

    I'm trying to select each first word, to wrap it in a specific span.

    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere.

    If this is the text, the script should select Lorem, Aliquam, varius and nulla.

    I'm trying to select each first word, to wrap it in a specific span.

    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere.

    If this is the text, the script should select Lorem, Aliquam, varius and nulla.

    • javascript
    • jquery
    • css
    Share Improve this question edited Nov 7, 2019 at 19:16 TylerH 21.1k77 gold badges79 silver badges112 bronze badges asked Dec 21, 2010 at 9:08 TeisTeis 2113 silver badges9 bronze badges 2
    • I'm assuming you don't have each line in a separate <p> tag or have each line ending with a <br /> ? – rtpHarry Commented Dec 21, 2010 at 9:23
    • Improve your question with some more description – Mohan Ram Commented Dec 21, 2010 at 9:29
    Add a ment  | 

    3 Answers 3

    Reset to default 11

    You can do this, by using JavaScript to wrap every word in the paragraph in its own span, and then walking through the spans finding out what their actual position on the page is, and then applying your style changes to the spans whose Y position is greater than the preceding span. (Best do it beginning-to-end, though, as earlier ones may well affect the wrapping of latter ones.) But it's going to be a lot of work for the browser, and you'll have to repeat it each time the window is resized, so the effect will have to be worth the cost.

    Something like this (used jQuery as you've listed the jquery tag on your question):

    jQuery(function($) {
  var lasty;
  
  var $target = $('#target');
  $target.html(
    "<span>" +
    $target.text().split(/\s/).join("</span> <span>") +
    "</span>");
  lasty = -1;
  $target.find('span').each(function() {
    var $this = $(this),
        top = $this.position().top;
    if (top > lasty) {
      $this.css("fontWeight", "bold");
      lasty = top;
    }
  });
});
    <div id='target' style='width: 20em'>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere.</div>
<script src="http://ajax.googleapis./ajax/libs/jquery/1/jquery.min.js"></script>

    Naturally that's making a huge set of assumptions (that all whitespace should be replaced with a single space, that there's no markup in the text, probably others). But you get the idea.

    Here's a version that handles window resize, 50ms after the last resize event occurs (so we're not doing it interim) and with Gaby's suggestion (below) that we unbold at the start of the resize:

    jQuery(function($) {
  var resizeTriggerHandle = 0;

  // Do it on load
  boldFirstWord('#target');
  
  // Do it 100ms after the end of a resize operation,
  // because it's *expensive*
  $(window).resize(function() {
    if (resizeTriggerHandle != 0) {
      clearTimeout(resizeTriggerHandle);
    }
    unboldFirstWord('#target');
    resizeTriggerHandle = setTimeout(function() {
      resizeTriggerHandle = 0;
      boldFirstWord('#target');
    }, 50);
  });
  
  function boldFirstWord(selector) {
    var lasty;

    // Break into spans if not already done;
    // if already done, remove any previous bold
    var $target = $(selector);
    if (!$target.data('spanned')) {
      $target.html(
        "<span>" +
        $target.text().split(/\s/).join("</span> <span>") +
        "</span>");
      $target.data('spanned', true);
    }
    else {
      unboldFirstWord($target);
    }

    // Apply bold to first span of each new line
    lasty = -1;
    $target.find('span').each(function() {
      var $this = $(this),
          top = $this.position().top;
      if (top > lasty) {
        $this.css("fontWeight", "bold");
        lasty = top;
      }
    });
    $target.data('bolded', true);
  }
  
  function unboldFirstWord(selector) {
    var $target = selector.jquery ? selector : $(selector);
    if ($target.data('spanned') && $target.data('bolded')) {
      $target.find('span').css("fontWeight", "normal");
      $target.data('bolded', false);
    }
  }
});
    <div id='target'>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere.</div>
<script src="http://ajax.googleapis./ajax/libs/jquery/1/jquery.min.js"></script>

    Try this:

    $(function() {
  $('p').each(function() {
    var text_splited = $(this).text().split(" ");
    $(this).html("<strong>"+text_splited.shift()+"</strong> "+text_splited.join(" "));
  });
});
    <script src="https://ajax.googleapis./ajax/libs/jquery/1.4.4/jquery.min.js"></script>

<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor.</p>
<p>Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum.</p>
<p>Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere.</p>

    To bold every first word of a <p> tag, including whitespace after the initial <p>, use some regular expressions:

    $('p').each(function(){
    var me = $(this);
    me.html( me.text().replace(/(^\w+|\s+\w+)/,'&lt;strong&gt;$1&lt;/strong&gt;') );
});

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