JQuery:如何为元素分配字体 [英] JQuery: How to get assigned font to element

问题描述

是否可以在 jQuery 中检索元素的指定字体?

Is it possible to retrieve the assigned font of an element in jQuery?

假设有 css:

#element
{
font-family: blahblah,Arial;
}

在上面的例子中，Arial 字体将被分配给#element.有没有办法通过 JS/JQuery 获取这些信息?

In the above example, Arial font will be assigned to #element. Is there a way to get that information via JS/JQuery?

类似于:

$('#element').css('font-family');

只返回 blahblah,Arial;

推荐答案

(function($) {
    $.fn.detectFont = function() {
        var fonts = $(this).css('font-family').split(",");
        if ( fonts.length == 1 )
            return fonts[0];

        var element = $(this);
        var detectedFont = null;
        fonts.forEach( function( font ) {
            var clone = element.clone().css({'visibility': 'hidden', 'font-family': font}).appendTo('body');
            if ( element.width() == clone.width() )
                detectedFont = font;
            clone.remove();
        });

       return detectedFont;
    }
})(jQuery);

编辑:必须从 dom 中删除克隆的项目.

edit: had to remove the cloned item from the dom.

刚才再提一下，它仍然依赖于元素宽度 - 所以你的里程可能会有所不同.

Whipped this up just now, again, it still relies on element width - so your mileage may vary.

$('#element').detectFont();//输出Arial

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