javascript - 如何使用 javascript 查找和替换类(无 JQUERY)

Question

例如:我有<div class="oneClass twoClass colorRed">Content</div>我想找到 color* class 并将颜色部分“Red”替换为新值“Blue”或“Yellow”，例如现在为“colorBlue”...

我如何只使用 Javascript 来做到这一点？

谢谢!

更新:这不是我的问题:Change an element's class with JavaScript

Answer 1

var node = document.getElementById('someDiv');
node.className = node.className.replace(/color.*/, 'colorBlue');

/* This css snippet will allow to see 
 * element's classes rendered with the html ;)*/
div:after {
  content: attr(class);
  margin-left: 5px;
  font-style: italic;
  color: gray;
}

<div id="someDiv" class="oneClass twoClass colorRed">Content</div>