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qrcodejs：根据URL地址生成二维码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
qrcodejs：根据URL地址生成二维码qrcodejs下载地址：http: davidshimjs github io qrcodejs 用起来很简单，页面中引入两个js：<script type="text javascript" src="https: www tsingfun com statics js jquer qrcodejs下载地址：http://davidshimjs.github.io/qrcodejs/
用起...
mongodb, replicates and error: { “$err” : “not master and slaveOk=false”, “code” : 13435 }
...id typing rs.slaveOk() every time, do this:
Create a file named replStart.js, containing one line: rs.slaveOk()
Then include --shell replStart.js when you launch the Mongo shell. Of course, if you're connecting locally to a single instance, this doesn't save any typing.
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Cached, PHP generated Thumbnails load slowly
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Second, when I load your page, I see most of the blocking (~1.25s) on all.js. I see that begins with (an old version of) jQuery. You should reference that from the Google CDN, to not only decrease load time, but potentially avoid an HTTP request for it entirely.
Specifically, the most current jQ...
What is causing this error - “Fatal error: Unable to find local grunt”
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I think you don't have a grunt.js file in your project directory. Use grunt:init, which gives you options such as jQuery, node,commonjs. Select what you want, then proceed. This really works. For more information you can visit this.
Do this:
1. npm ...
Check if OneToOneField is None in Django
...ue:
p2 doesn’t have an associated restaurant:
>>> from django.core.exceptions import ObjectDoesNotExist
>>> try:
>>> p2.restaurant
>>> except ObjectDoesNotExist:
>>> print("There is no restaurant here.")
There is no restaurant here.
I agree w...
How to do a JUnit assert on a message in a logger
...rt java.util.ArrayList;
import java.util.List;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
public class MyTest {
@Test
public void test() {
final TestAppender appender = new TestAppender();
final Logger logger = Logger.getRootLogge...
How to include a child object's child object in Entity Framework 5
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With EF Core in .NET Core you can use the keyword ThenInclude :
return DatabaseContext.Applications
.Include(a => a.Children).ThenInclude(c => c.ChildRelationshipType);
Include childs from childrens collection :
return Dat...
Using the Underscore module with Node.js
I've been learning about node.js and modules, and can't seem to get the Underscore library to work properly... it seems that the first time I use a function from Underscore, it overwrites the _ object with the result of my function call. Anyone know what's going on? For example, here is a session ...
Get current stack trace in Ruby without raising an exception
...ml { render :template => "errors/404", :status => 404 }
format.js { render :nothing => true, :status => 404 }
format.xml { render :nothing => true, :status => 404 }
elsif exception.class == CanCan::AccessDenied
format.html {
render :template => "...
how to debug the js in jsfiddle
I am looking at this jsfiddle: http://jsfiddle.net/carpasse/mcVfK/
It works fine that is not the problem , I just want to know how to debug through the javascript. I tried to use the debugger command and I cant find it in the sources tab?
any idea how I can debug this?
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