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How to listen for changes to a MongoDB collection?
... Replica Set, all of the MongoDB actions are logged to an operations log (known as the oplog). The oplog is basically just a running list of the modifications made to the data. Replicas Sets function by listening to changes on this oplog and then applying the changes locally.
Does this sound famil...
How do I append one string to another in Python?
...ference to a string and you concatenate another string to the end, CPython now special cases this and tries to extend the string in place.
The end result is that the operation is amortized O(n).
e.g.
s = ""
for i in range(n):
s+=str(i)
used to be O(n^2), but now it is O(n).
From the source...
How can I expand and collapse a using javascript?
...d, but I still am not having it work. I've messed with it for a good hour now, I'll sleep on it. Maybe tomorrow it will hit me.
– Ryan Mortensen
Jul 5 '13 at 5:38
...
IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d
...atures” node
Check the check box of “ASP.NET”
Then click ok button
Now, you will see the ASP.net account on the IIS manager and by default you will see the IIS account. Now, you should move your ASP.net website from “my document” to another place where the IIS have permission to access i...
R memory management / cannot allocate vector of size n Mb
...to a minimum when you need to make objects of this size. Use gc() to clear now unused memory, or, better only create the object you need in one session.
If the above cannot help, get a 64-bit machine with as much RAM as you can afford, and install 64-bit R.
If you cannot do that there are many o...
How to set breakpoints in inline Javascript in Google Chrome?
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The tab is called Sources instead of Scripts now.
– CoderDennis
Aug 30 '12 at 21:57
1
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Twitter Bootstrap 3.0 how do I “badge badge-important” now
...g: 1px 9px 2px;
font-size: 12.025px;
font-weight: bold;
white-space: nowrap;
color: #ffffff;
background-color: #999999;
-webkit-border-radius: 9px;
-moz-border-radius: 9px;
border-radius: 9px;
}
.badge:hover {
color: #ffffff;
text-decoration: none;
cursor: pointer;
}
.badge-err...
Using node-inspector with Grunt tasks
...
@valter.santos.matos actually it is now you should use the node --inspect mentioned below
– Jackie
Jun 28 '17 at 14:53
add a comment
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Detect the Internet connection is offline?
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Now in 2012 you can check the variable navigator.onLine ;)
– João Pinto Jerónimo
Apr 23 '12 at 9:13
13
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What to do about Eclipse's “No repository found containing: …” error messages?
...something like this somewhere in the update process but don't see anything now. I check for updates and get a list of updates. All I can do is select which ones I want. Next it is a review screen, where I can't actually do anything except go back, cancel, or finish. I've also looked under preference...