javascript - 大写各种标签内容元素的首字母

Question

我需要将p、h2、h3、h4等各种html元素的首字母大写

This stack question has helped me ，但是，它只针对 p 标签。我怎么说要定位多个标签？

如:

function change(charm) {
   var string = eval(charm).toLowerCase(), change = "", newstring = string.split("."),   tochange;
   for (var i = 0; i < newstring.length; i++) {
       tochange = newstring[i].trim().charAt(0);
       newstring[i] = newstring[i].replace(tochange, tochange.toUpperCase());
}
   change = newstring.join(" . ");
   return change;
}

var text = change("document.getElementsByTagName('p, h2, h3, h4')[0].innerHTML");
document.getElementsByTagName("p, h2, h3, h4")[0].innerHTML = text;

那行不通，我在定位各种元素时做错了什么吗？

Answer 1

纯 CSS 方法:

p:first-letter,
h1:first-letter,
h2:first-letter,
h3:first-letter,
h4:first-letter {
  text-transform: uppercase;
}

:first-letter是ie9+