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Globally override key binding in Emacs
How can I set a key binding that globally overrides and takes precedence over all other bindings for that key? I want to override all major/minor mode maps and make sure my binding is always in effect.
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Rails: FATAL - Peer authentication failed for user (PG::Error)
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If you installed postresql on your server then just host: localhost to database.yml, I usually throw it in around where it says pool: 5. Otherwise if it's not localhost definitely tell that app where to find its database.
development:...
reformat in vim for a nice column layout
...ion for this.
Locate to the longest word and place cursor after it.
Remove all the extra whitespace using dw and vertical movement.
Example of this technique demonstrated below:
I don't find myself needing to align things often enough to install another plugin, so this was my preferred way of a...
Find object by id in an array of JavaScript objects
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Basically I always use === because it works exactly like == in other programming languages. I consider == to be non-existent in JavaScript.
– Vicky Chijwani
Dec 11 '12 at 13:27
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How do you get the index of the current iteration of a foreach loop?
...or iterating over collections that implement IEnumerable. It does this by calling GetEnumerator on the collection, which will return an Enumerator.
This Enumerator has a method and a property:
MoveNext()
Current
Current returns the object that Enumerator is currently on, MoveNext updates Current t...
How to randomize (or permute) a dataframe rowwise and columnwise?
...] 1 0 0 1 0
[4,] 0 0 1 0 1
To explain the call:
out <- permatswap(mat, times = 99, burnin = 20000, thin = 500, mtype = "prab")
times is the number of randomised matrices you want, here 99
burnin is the number of swaps made before we start taking random samples....
Get and Set a Single Cookie with Node.js HTTP Server
...console.log('Server running at http://127.0.0.1:8124/');
This will store all cookies into the cookies object, and you need to set cookies when you write the head.
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Turning off some legends in a ggplot
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You can use guide=FALSE in scale_..._...() to suppress legend.
For your example you should use scale_colour_continuous() because length is continuous variable (not discrete).
(p3 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) +
sca...
LINQ equivalent of foreach for IEnumerable
...Multi-threading, possible by PLINQ. 2. Exceptions, you may want to collect all exception in the loop and throw it at once; and they are noise codes.
– Dennis C
Feb 7 '10 at 7:06
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Setting UIButton image results in blue button in iOS 7
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In iOS7 there is new button type called UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0), // standard system button
Check your .xib file and change button type to Custom
To do this programmatically, add this line to the viewDidLoad:
[UIButton buttonWithType...