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New to MongoDB Can not run command mongo
... if you start mongo with service mongodb start it automatically reads the /etc/mongod.conf file and you don't need to specify your --dbpath or --config variables each time you start! This definitely works for the 10gen install but I'm not sure about others as I haven't tried them.
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Check whether a cell contains a substring
... group. To do this I am looking for the word "builder" or "construction", etc. So -
=IF(OR(COUNTIF(A1,"*builder*"),COUNTIF(A1,"*builder*")),"Builder","Community")
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tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
...,设置为60,以缩短TIME_WAIT的等待时间
ubuntu机器设置
vi /etc/sysctl.conf
编辑文件，加入以下内容：
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_fin_timeout = 30
然后执行 /sbin/sysctl -p 让参数生效。
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Can jQuery provide the tag name?
... +1 jQuery is() doesn't do the job because in the case of h1, h2, etc there are 6 different cases you have to handle if using is().
– Konstantin Dinev
Nov 19 '12 at 9:51
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TypeError: p.easing[this.easing] is not a function
...and you've tried updating versions and making sure effects core is present etc and still scratching your head. Check the documentation for animate() and other syntax.
All I did was write "Linear" instead of "linear" and got the [this.easing] is not a function
$("#main").animate({ scrollLeft: '187p...
Find out whether radio button is checked with JQuery?
... Bingo! thanks David. So would I have to invoke an action (click etc) to show the alert? Is there a way to do this without clicking?
– Keith Donegan
Feb 16 '10 at 11:50
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How to properly document S4 class slots using Roxygen2?
...escription/details appears to be the same as for functions, methods, data, etc. However, slots and inheritance are their own sort of animal. What is the best practice -- current or planned -- for documenting S4 classes in roxygen2?
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Unable to make the session state request to the session state server
... the service is started, ports aren't being blocked, reg keys are correct, etc.
Kaseya, in particular, places a file called serveripinternal.txt in the root IIS directory of the VSA server. I've seen the text of your error when somebody running their own Kaseya instance changed the server's interna...
How to get the element clicked (for the whole document)?
...ses a jQuery selector so you can easily target tags of any class, ID, type etc.
jQuery('div').on('click', function(){
var node = jQuery(this).get(0);
var range = document.createRange();
range.selectNodeContents( node );
window.getSelection().removeAllRanges();
window.getSelectio...
Best practice to validate null and empty collection in Java
...se CollectionUtils to check against both Collections (List, Array) and Map etc.
if(CollectionUtils.isEmpty(...)) {...}
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