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How do I check if an element is hidden in jQuery?
...it possible to toggle the visibility of an element, using the functions .hide() , .show() or .toggle() ?
59 Answers
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Using .sort with PyMongo
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If it is only one field, it can be .sort("_id", 1)
– Haris Np
Mar 15 '18 at 11:51
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Confused about stdin, stdout and stderr?
...h the console (e.g. Keyboard input).
Used in C with scanf
scanf(<formatstring>,<pointer to storage> ...);
stdout
Produces output to the console.
Used in C with printf
printf(<string>, <values to print> ...);
stderr
Produces 'error' output to the console.
Used in C wit...
Setting up maven dependency for SQL Server
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Download the driver JAR from the link provided by Olaf and add it to your local Maven repository with;
mvn install:install-file -Dfile=sqljdbc4.jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc4 -Dversion=4.0 -Dpackaging=jar
Then add it to your project wit...
Animated loading image in picasso
...ml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:gravity="center">
<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/progress_image"...
how to find host name from IP with out login to the host
...;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12770
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1460
;; QUESTION SECTION:
;34.34.51.72.in-addr.arpa. IN PTR
;; ANSWER SECTION:
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Git push results in “Authentication Failed”
... I had been able to change credentials on a case per case basis, I really did not want to do this for every project. @Pradeep's approach allowed me to solve the underlying cause, which was more than simply a password change. Our organization recently changed the name of the internal domain, so by ...
Android - Package Name convention
For the "Hello World" example in android.com , the package name is
"package com.example.helloandroid;"
6 Answers
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由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...IFO、LRU、LFU都是比较经典的换页算法。相关内容参看Wikipeida的缓存算法。
3）缓存的重建和持久化。缓存在内存，系统总要维护，所以，缓存就会丢失，如果缓存没了，就需要重建，如果数据量很大，缓存重建的过程会很慢，这...
WordPress asking for my FTP credentials to install plugins
...s is. Then, forcing FS_METHOD works.
– Sebastian Schmid
Apr 7 '16 at 13:51
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