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How can strings be concatenated?
...asiest way would be
Section = 'Sec_' + Section
But for efficiency, see: https://waymoot.org/home/python_string/
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quick random row selection in Postgres
...whether you want to use BERNULLI oder SYSTEM, read about the difference at http://blog.2ndquadrant.com/tablesample-in-postgresql-9-5-2/
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Random alpha-numeric string in JavaScript? [duplicate]
...rstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
Here's a jsfiddle to demonstrate: http://jsfiddle.net/wSQBx/
Another way to do it could be to use a special string that tells the function what types of characters to use. You could do that like this:
function randomString(length, chars) {
var mask = ''...
How to sort a HashMap in Java [duplicate]
...
http://snipplr.com/view/2789/sorting-map-keys-by-comparing-its-values/
get the keys
List keys = new ArrayList(yourMap.keySet());
Sort them
Collections.sort(keys)
print them.
In any case, you can't have sorted values ...
How to add manifest permission to an application?
I am trying to access HTTP link using HttpURLConnection in Android to download a file, but I am getting this warning in LogCat :
...
CoffeeScript on Windows?
...instructions are the same for Windows, Mac, or Linux
Install Nodejs from http://nodejs.org/
Install CoffeeScript globally with the node package manager npm install -g coffeescript or locally npm install --save-dev coffeescript
Write a script in your favourite text editor. Save it, say as hello.cof...
How to make a programme continue to run after log out from ssh? [duplicate]
...ally linked example (still available at web.archive.org/web/20090106170543/http://www.rackaid.com/…)?
– josliber♦
Dec 21 '15 at 5:16
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In which order do CSS stylesheets override?
... than trying to paraphrase them badly, I'll simply refer you to the spec:
http://www.w3.org/TR/2011/REC-CSS2-20110607/cascade.html#cascade
In short: more specific rules override more general ones. Specificity is defined based on how many IDs, classes, and element names are involved, as well as whe...
How to pick a new color for each plotted line within a figure in matplotlib?
..._cycle
color_cycle was deprecated in 1.5 in favor of this generalization: http://matplotlib.org/users/whats_new.html#added-axes-prop-cycle-key-to-rcparams
# cycler is a separate package extracted from matplotlib.
from cycler import cycler
import matplotlib.pyplot as plt
plt.rc('axes', prop_cycle=...
Don't reload application when orientation changes
... in a Webview) when the orientation changes.
Learned this from this site:
http://developer.android.com/guide/topics/manifest/activity-element.html
Also, this is apparently a bad practice so read the link below about Handling Runtime Changes:
http://developer.android.com/guide/topics/resources/run...