更改每隔一个字母字体颜色？ （JavaScript） [英] Change every other letters font color? (JavaScript)

问题描述

我尝试在我的论坛上创建一个圣诞用户组，并想要使用JavaScript将用户名替换为绿色/红色模式。因此，基本上，JavaScript会将特定CSS类中的每个其他字母变成绿色，其他字母将保持红色。

I'm trying to create a Christmas user group on my forums, and would like to replace the users name with a green/red pattern using JavaScript. So basically, JavaScript would turn every other letter within a specific CSS class into green, and the others would stay red.

现在是这样： p>

So this is what it looks like now:

<span class="style6">Username</span>

我想让JavaScript变成这样：

I'd like JavaScript to turn it into something like this:

<span class="style6">
    <span class="color_red">U</span>
    <span class="color_green">s</span>
    <span class="color_red">e</span>
    <span class="color_green">r</span>
    <span class="color_red">n</span>
    <span class="color_green">a</span>
    <span class="color_red">m</span>
    <span class="color_green">e</span>
</span>

推荐答案

只要 ; span> 不包含任何HTML。

As long as your <span> doesn't contain any HTML you could do this.

$('.style6').each(function(){
    var letters = $(this).text().split('');
    $(this).text('');
    for(var i = 0; i < letters.length; i++){
        if(i % 2 == 0){
            $(this).append('<span class="color_red">' + letters[i] + '</span>');
        }
        else{
            $(this).append('<span class="color_green">' + letters[i] + '</span>');
        }
    }
});

如果< span> 确实包含HMTL。

编辑：这是用jQuery BTW。不确定是否可以。

This is with jQuery BTW. Not sure if that is OK.

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