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
710 views
in Technique[技术] by (71.8m points)

javascript - chaining HTML5 classList API without (Jquery)

Is there a way to chain HTML5 classList API chaining?.

this will not work

var sidebar = document.querySelector("#sidebar");

sidebar.classList.toggle("active").classList.remove("hover")

while this will work

var sidebar = document.querySelector("#sidebar");

sidebar.classList.toggle("active"); 
sidebar.classList.remove("hover")

NOTE: NO jquery please

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)

You can create chainability via a little object with chainable methods:

function classList(elt) {
  var list = elt.classList;

  return {
      toggle: function(c) { list.toggle(c); return this; },
      add:    function(c) { list.add   (c); return this; },
      remove: function(c) { list.remove(c); return this; }
  };

}

Then you can chain to your heart's content:

classList(elt).remove('foo').add('bar').toggle('baz')

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

...