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Mechanisms for tracking DB schema changes [closed]
...d a pre-comment SVN hook that will disallow .sql files containing the mydb string, which is a sure sign that someone copy/pasted from phpMyAdmin without proper checking.
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Set Viewbag before Redirect
...ata["shortMessage"] content
ViewBag.Message = TempData["shortMessage"].ToString();
return View();
}
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Why does this method print 4?
...t execution if you'd prefer-
static int cnt = 0;
public static void main(String[] args) {
try {
main(args);
} catch (Throwable ignore) {
cnt++;
try {
System.out.println(cnt);
} catch (Throwable t) {
}...
What is the difference between HTTP and REST?
...d a header info to every request.
HTTP Methods supported by REST:
GET: /string/someotherstring
It is idempotent and should ideally return the same results every time a call is made
PUT:
Same like GET. Idempotent and is used to update resources.
POST: should contain a url and body
Used for cre...
When should I use a trailing slash in my URL?
...ile) when a directory is accessed, so /foo/ is /foo/index.html without the extra mess. Also, in the past, browsers would append / to the domain name, but they (Firefox, Chrome, Opera) have since changed to omit the / when accessing the homepage.
– 0b10011
Mar 7...
Multiple aggregations of the same column using pandas GroupBy.agg()
...what the arguments are. As
usual, the aggregation can be a callable or a string alias.
You can now pass a tuple via keyword arguments. The tuples follow the format of (<colName>, <aggFunc>).
import pandas as pd
pd.__version__ ...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
...ta.frame(x=runif(10),y=runif(10),
grp = rep(LETTERS[1:5],each = 2),stringsAsFactors = TRUE)
#Create a custom color scale
library(RColorBrewer)
myColors <- brewer.pal(5,"Set1")
names(myColors) <- levels(dat$grp)
colScale <- scale_colour_manual(name = "grp",values = myColors)
and t...
What do (lambda) function closures capture?
...lent way is the one recommended by Adrien Plisson. Create a lambda with an extra argument, and set the extra argument's default value to the object you want preserved.
A little more verbose but less hacky would be to create a new scope each time you create the lambda:
>>> adders = [0,1,2,3...
Is it faster to count down than it is to count up?
...culative instructions will sneak in the "Sub i and N" without incurring an extra cycle -- and -- even the crudest compiler will optimise the the "Sub i and N" out of existence.
– James Anderson
May 13 '10 at 5:47
...
wget/curl large file from google drive
... https://drive.google.com/open?id=0B7_OwkDsUIgFWXA1B2FPQfV5S8H. Obtain the string behind the ?id= and copy it to your clipboard. That's the file's ID.
Download the file. Of course, use your file's ID instead in the following command.
gdrive download 0B7_OwkDsUIgFWXA1B2FPQfV5S8H
At first usage, t...