我有一个每12秒更改一次的背景.在Chrome,Firefox和Opera中,后台更改工作正常,但在Safari中,浏览器始终会再次加载图像,并且会在第一个周期的每个图像更改时闪烁.关于如何解决这个问题的任何想法.
这就是我处理背景变化的方式:
var img2 = new Image();
var img3 = new Image();
img2.src="/img/bg2.png";
img3.src="/img/bg3.png";
Meteor.setInterval(function(){
let elem = $(".header-2");
if(elem.hasClass("bg1")){
elem.removeClass("bg1");
elem.addClass("bg2");
let src = 'url('+img2.src.replace(location.origin,'')+')';
elem.css("background-image", src);
}
else if(elem.hasClass("bg2")){
elem.removeClass("bg2");
elem.addClass("bg3");
let src = 'url('+img3.src.replace(location.origin,'')+')';
elem.css("background-image", src);
}
else{
elem.removeClass("bg3");
elem.addClass("bg1");
}
}, 12*1000)
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css类:
.header-2.bg1 {
background-image: url('/img/bg1.png');
}
.header-2.bg2 {
}
.header-2.bg3 {
}
Run Code Online (Sandbox Code Playgroud) 我正在根据以下示例使用Google身份验证。一切正常,然后突然我尝试登录时开始出现此错误:
httplib2.ServerNotFoundError ServerNotFoundError:无法在accounts.google.com上找到服务器
有什么想法可能有问题吗?
from flask import Flask, redirect, url_for, session
from flask_oauth import OAuth
# You must configure these 3 values from Google APIs console
# https://code.google.com/apis/console
GOOGLE_CLIENT_ID = '<Client-ID>'
GOOGLE_CLIENT_SECRET = '<Client-secret>'
REDIRECT_URI = '/authorized' # one of the Redirect URIs from Google APIs console
SECRET_KEY = 'development key'
DEBUG = True
app = Flask(__name__)
app.debug = DEBUG
app.secret_key = SECRET_KEY
oauth = OAuth()
google = oauth.remote_app('google',
base_url='https://www.google.com/accounts/',
authorize_url='https://accounts.google.com/o/oauth2/auth',
request_token_url=None,
request_token_params={'scope': 'https://www.googleapis.com/auth/userinfo.email',
'response_type': 'code'},
access_token_url='https://accounts.google.com/o/oauth2/token',
access_token_method='POST',
access_token_params={'grant_type': 'authorization_code'}, …Run Code Online (Sandbox Code Playgroud) 如何使用 thymeleaf th:each 同时迭代两个列表。
<select id="rooms" th:field="*{room}">
<option th:each="room : ${roomsFromHotel}"
th:value="${{room}}"
th:text="${room.id}">
room name
</option>
</select>
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这是有效的,但我想做这样的事情
<select id="rooms" th:field="*{room}">
<option th:each="room : ${roomsFromHotel}, roomType : ${roomTypesList}"
th:value="${{room}}"
th:text="${roomType.name}">
room name
</option>
</select>
Run Code Online (Sandbox Code Playgroud) 如果我运行,systemctl restart kubelet是否会影响其他正在运行的节点?它会停止集群吗?您能预见到任何影响吗?任何帮助,将不胜感激!
我的rubymine停止识别html.erb文件:s你可以在这里看到它的样子:http://pasteboard.co/1D5oWZGB.png
如果您的建议,它的卸载,请打电话给我如何在Ubuntu上做:)谢谢无论如何:)
伙计们,我正在努力提出这个查询。一项活动有一项运动和一个场所,两者都可以有许多活动。我想要一个查询,根据在这些地方进行给定运动的频率来选择前 10 个地方。我有一个错误: where( :activities.sport_id => @sport.id),我不知道我该怎么做这部分,任何帮助将不胜感激!
class Activity < ActiveRecord::Base
has_one :sport
belongs_to :place
class Sport < ActiveRecord::Base
has_many :activities, :class_name => "Activity", :foreign_key => "sport_id"
has_many :places, through: :activities
class Place < ActiveRecord::Base
has_many :activities, :class_name => "Activity", :foreign_key => "place_id"
has_many :sports, through: :activities
def show
@places = Place.where(:activities.sport_id => @sport.id).sort{ |a,b| b.activityfrequency(@sport.name) <=> a.activityfrequency(@sport.name)}.take(10)
end
Run Code Online (Sandbox Code Playgroud) 有什么方法可以在node js中的函数返回后运行一段代码吗?
像这样的东西:
function f() {
#do stuff
#return result
#do more stuff
}
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