我发现this article应该与我正在寻找的内容相关，即按类对列表进行排序。但是，在我的代码中，它没有用。所以我试图弄清楚如何解决问题。我有两个班，＆＃34;离线＆＃34;和＆＃34;无＆＃34;。我想要课程＆＃34;离线＆＃34;来到顶级和班级＃34;没有＆＃34;显示在＆＃34;离线＆＃34;底部区域。我在每个div中还有一个课程，其中包括＆＃34; indbox＆＃34;因此，我尝试使用＆＃34; getElementsByClassName ＆＃34;但它不起作用。
这是我的code from codepen。
$(document).ready(function() {
$(".con-button").click(function(){
var cssObj = {};
cssObj.left = $(this).position().left;
cssObj.width = $(this).outerWidth();
$(".controls .effect").css( cssObj );
if(this.id == "c-all") {
$('.offline').hide();
$('.offline').fadeIn("slow").show();
$('.online').hide();
$('.online').fadeIn("slow").show();
$('.none').fadeIn("slow").show();
} else if (this.id == "c-online") {
$('.offline').hide();
$('.online').hide();
$('.online').fadeIn("slow").show();
$('.none').hide();
} else if (this.id == "c-offline") {
$('.offline').hide();
$('.offline').fadeIn("slow").show();
$('.online').hide();
$('.none').hide();
}
});
$(".con-button").eq(0).trigger("click");
getSteams();
var elem = $('#offline').find('div').sort(sortMe);
function sortMe(a, b) {
return a.getElementsByClassName("offline") < b.getElementsByClassName("none");
}
$('#offline').append(elem);
});
var channels = ["BasicallyIDoWrk", "FreeCodeCamp", "Golgothus", "OgamingSC2", "maatukka", "Vinesauce", "brunofin", "comster404", "esl_csgo"];
var cb = "?client_id=egn4k1eja0yterrcuu411n5e329rd3&callback=?";
function getSteams() {
channels.forEach(function(indchannel) {
//for (var channel in channels) {
//var indchannel = channel;
var streamURL = "https://api.twitch.tv/kraken/streams/" + indchannel + cb;
var channelURL = "https://api.twitch.tv/kraken/channels/" + indchannel + cb;
$.ajax({
url: streamURL,
type: 'GET',
dataType: "jsonp",
data: {
//action: 'query',
format: 'json',
},
headers: {
"Accept": "application/vnd.twitchtv.v5+json",
},
success: function(data) {
var game;
var status;
if(data.stream === null) {
$.getJSON(data._links.channel + "/?client_id=egn4k1eja0yterrcuu411n5e329rd3&callback=?", function(data2) {
if(data2.status == 404) {
game = "The Account doesn't exist";
status = "none";
} else {
game = "Offline";
status = "offline";
}
$("#offline").append('<div class="indbox ' + status + '"><a target="_blank" href="#">'+ indchannel + '<br/>' + game +'</a></div>');
} );
} else {
game = data.stream.game;
status = "online";
$("#online").append('<div class="indbox ' + status + '"><a target="_blank" href="#">'+ indchannel + '<br/>' + game +'</a></div>');
};
}
});
});
}html, body{
height:100%;
margin: 0;
background-color: #ffffff;
}
.wrapper {
text-align: center;
position: relative;
width: 100%;
height: 100%;
display:block;
}
.container {
width: 75%;
margin: 30px auto 0;
position: relative;
}
.logobox img {
width: 20%;
margin: 0 auto;
}
.controls {
position: relative;
width: 100%;
}
.con-button {
position: relative;
background-color: white;
border: none;
margin: 0.5em 0 0 0;
padding: 0.5em 1em 0.5em 1em;
text-align: center;
color: rgb(100,65,164);
font-size: 20px;
transition: .4s;
}
.con-button:hover {
cursor: pointer;
/*border-bottom: 3px solid rgba(224, 217, 236, 1);*/
}
.con-button:focus {outline: 0;}
.divider hr {
border-top: 1px solid #6441A4;
}
.effect {
position: absolute;
display: block;
left: 0;
bottom: 5px;
height: 2px;
width: 60px;
transition: 0.4s ease-in-out;
/*border-bottom: 3px solid rgba(100, 65, 164, 1);*/
background: #6441A4;
}
.indbox {
width: 100%;
display: block;
margin: 5px 0px;
padding: 8px 0px;
}
.online {
background-color: #98FB98;
}
.offline {
background-color: #ff9999;
}
.none {
background-color: #D3D3D3;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrapper">
<div class="container">
<div class="twitchtvarea">
<div class="logobox">
<img src="https://s6.postimg.org/bay7stotd/Twitch_Purple_RGB.png" />
</div>
<div class="twitchbox">
<div class="controls">
<button id="c-all" class="con-button active" type="button">All</button>
<button id="c-online" class="con-button" type="button">Online</button>
<button id="c-offline" class="con-button" type="button">Offline</button>
<div class="effect"></div>
</div>
<div class="divider"><hr></div>
<div id="online"></div>
<div id="offline"></div>
</div>
</div>
</div>
</div>
我希望您关注的代码是：
var elem = $('#offline').find('div').sort(sortMe);
function sortMe(a, b) {
return a.getElementsByClassName("offline") < b.getElementsByClassName("none");
}
$('#offline').append(elem);
请帮我解决。
答案 0 :(得分：0)
查看您的代码，我发现您正在使用此Sort Function;但是，你的做法是不正确的。在示例中，他们有：
function compare(a, b) {
if (a is less than b by some ordering criterion) {
return -1;
}
if (a is greater than b by the ordering criterion) {
return 1;
}
// a must be equal to b
return 0;
}
所以为了排序＆＃34;离线＆＃34;在＆＃34; none＆＃34;之前，你的函数必须返回1
function sortMe(a, b){
if (a.hasClass("offline")) {
return 1; //if an element has offline, move it above.
} else {
return -1; //if an element doesn't have offline, it means it's none. Move it down.
}
}
您可能希望添加条件以检查它们是否都具有脱机类。
答案 1 :(得分：0)
您的问题可以通过以下方式解决：
appendTo();
方法。
而不是：
append();
方法
我在你的html代码中添加了两个额外的div，并对你的javascript代码进行了一些小改动它的工作原理!!!
html如下：
<div class="divider"><hr></div>
<div id="online"></div>
<div id="offline">
<div class="notconnected"></div>
<div class="nonexisting"></div>
</div>
</div>
并且javascript在这里被更改了：
if(data2.status == 404) {
game = "The Account doesn't exist";
status = "none";
}
else {
game = "Offline";
status = "offline";
}
if(status==="none"){
$('<div class="indbox ' + status + '" id="'+status+'"><a target="_blank" href="#">'+ indchannel + '<br/>' + game +'</a></div>').appendTo(".nonexisting");}
else{
$('<div class="indbox ' + status + '" id="'+status+'"><a target="_blank" href="#">'+ indchannel + '<br/>' + game +'</a></div>').appendTo(".notconnected");
}
} );
该方法的文档位于：appendTo()