Question

我需要将每个单词的每个首字母从特定的css类“eachword”换行到“span”html标记 - 使用javascript。同时我有很好的工作脚本，除了一个问题，脚本转换特殊字符，如“＆amp;”成html格式。所以，这就是我现在所拥有的：

在应用脚本之前：

<a class="eachword" href="#">Models & Brands</a>

脚本：

<script type="text/javascript">
window.onload = function()
{
    var elements = document.getElementsByClassName("eachword");

    for( var i=0; i<elements.length; i++)
    {
        elements[i].innerHTML = elements[i].innerHTML.replace(/\b([a-z])([a-z]+)?\b/gim, "<span class='firstletter'>$1</span>$2");
    }
}
</script>

结果：

<a class="eachword" href="#"><span class="firstletter">Models &<span class="firstletter">a</span>mp; <span class="firstletter">Brands</span></a>

我需要这个结果：

<a class="eachword" href="#"><span class="firstletter">Models <span class="firstletter">& </span><span class="firstletter">Brands</span></a>

在“head”标签中，我还包含了jQuery 1.7.2。

所以，问题是，代码出了什么问题，我在哪里弄错了？感谢您的关注，希望对您有所帮助！

Answer 1

在香草JS中，我想要快一点：

var a = document.getElementsByTagName("a");

for (i = 0; i < a.length; i++) {
    var words = a[i].innerHTML.split(" ");

    for (j = 0; j < words.length; j++) {
        if(words[j][0] != "&") {
            words[j] = "<span class='firstletter'>" + words[j][0] + "</span>" + words[j].substring(1);
        }
    }

    a[i].innerHTML=words.join(" ");
}

更现代的方式：

var anchors = Array.from(document.getElementsByTagName("a"));
anchors.forEach(a => {
  a.innerHTML =
    a.textContent
    .split(' ')
    .map(word => {
      if (word[0] != '&') {
        return `<span class="firstletter">${word[0]}</span>${word.substring(1)}`;
      } else {
        return word;
      }
    })
    .join(' ');
});

JSFiddle

Answer 2

这似乎对我有用，虽然可能有点笨拙

$(document).ready(function()
{
    // For each of the eachword class
    $("a.eachword").each(function()
    {
        // Get the string (html) and split it by " " (like PHP's explode)
        var self         = $(this);
        var theText      = self.html();
        var theTextArray = theText.split(" ");

        // Cycle them
        for (var i = 0; i < theTextArray.length; i++)
        {
            // Get this particular word and split it into individual letters
            var thisWord      = theTextArray[i];
            var thisWordArray = thisWord.split("");

            // Wrap the first letter if it is not a HTML char code
            if (thisWordArray[0] != "&")
            {
                thisWordArray[0]  = "<span class='firstletter'>"+thisWordArray[0]+"</span>";
            }

            // Stitch the letters back up
            theTextArray[i] = thisWordArray.join("");
        }

        // Join the original string back up
        var result = theTextArray.join(" ");

        self.html( result );
    });
});

http://jsfiddle.net/SFgXZ/

在span标记中包装每个单词的每个首字母 - javascript

2 个答案: