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Select last N rows from MySQL
...nal select and alias does not seem to work in Postgres (9.3.5). I get an 'Error: multiple ORDER BY clauses not allowed'. The accepted answer, however, does work as expected in Postgres
– allenwlee
Nov 10 '14 at 20:56
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Is there a regular expression to detect a valid regular expression?
...s.
using this with shell script in the grep command , it shows me some error.. grep: Invalid content of {} . I am making a script that could grep a code base to find all the files that contain regular expressions
This pattern exploits an extension called recursive regular expressions. This is ...
How do I append one string to another in Python?
...ueId() + "'>" + message_text + "</div>", I find less readable and error-prone then "<div class='{classname}' id='{id}'>{message_text}</div>".format(classname=class_name, message_text=message_text, id=generateUniqueId())
– Winston Ewert
Mar ...
Detect blocked popup in Chrome
...ari (v6), Chrome (v23.0.127.95) & IE (v7 & v9). Update the _displayError function to handle the error message as you see fit.
var popupBlockerChecker = {
check: function(popup_window){
var _scope = this;
if (popup_window) {
if(/chrome/.test(na...
How to get line count of a large file cheaply in Python?
..., and even better is doing this within a try-except block, where the and IOError exception is thrown if the file cannot be opened.
– BoltzmannBrain
May 20 '15 at 22:58
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iOS: Multi-line UILabel in Auto Layout
...ange. If we omit the second call we get a NSInternalInconsistencyException error, because we’ve made changes in the layout pass which require updating the constraints, but we didn’t trigger layout again.
We can also do this in a label subclass itself:
@implementation MyLabel
- (void)layoutSubv...
How to write DataFrame to postgres table?
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I've tried using this method, however it throws me an error: Table 'XYZ' already exists. As far as I understand, it shouldn't create a table, should it?
– E. Epstein
Apr 1 at 9:00
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Using .otf fonts on web browsers
...way to see that this is the problem is to follow the link to the font (404 error if so). You can temporarily rename to .ttf or even .html for testing. The only web fonts supported by IE is WOFF format. (Nope, never heard of it either!)
– Henrik Erlandsson
Oct ...
How does one change the language of the command line interface of Git?
...MESSAGES and $LANG.
This gives git servers a chance to display remote error messages in
the user's preferred language.
You have locale for git gui or other GUIs, but not for the command-line, considering it was one of the questions of GitSurvey 2010
localization of command-line messages ...
Common xlabel/ylabel for matplotlib subplots
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I get an error: AttributeError: 'numpy.ndarray' object has no attribute 'set_xlabel' in the statement ax.set_xlabel('Common x-label'). Can you figure it out?
– hengxin
Jul 8 '14 at 2:44
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