Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
423 views
in Technique[技术] by (71.8m points)

javascript - Invert text-color of a specific element (using jQuery)

How do I invert the text-color of an element using jQuery?

<div style="color: rgb(0, 0, 0)">Invert me</div>
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

A bit late but better late than never:

function invert(rgb) {
  rgb = Array.prototype.join.call(arguments).match(/(-?[0-9.]+)/g);
  for (var i = 0; i < rgb.length; i++) {
    rgb[i] = (i === 3 ? 1 : 255) - rgb[i];
  }
  return rgb;
}

console.log(
  invert('rgba(255, 0, 0, 0.3)'), // 0, 255, 255, 0.7
  invert('rgb(255, 0, 0)'), // 0, 255, 255
  invert('255, 0, 0'), // 0, 255, 255
  invert(255, 0, 0) // 0, 255, 255
);

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...