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How do I create/edit a Manifest file?
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Thank you but I don't know how to create the file properly.
– Cocoa Dev
May 19 '11 at 13:22
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Can hash tables really be O(1)?
It seems to be common knowledge that hash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations that come to mind:
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How to do a regular expression replace in MySQL?
...expression matching in the manner of the REGEXP and RLIKE operators, which now are synonyms for that function. In addition, the REGEXP_INSTR(), REGEXP_REPLACE(), and REGEXP_SUBSTR() functions are available to find match positions and perform substring substitution and extraction, respectively.
SELE...
SQLite table constraint - unique on multiple columns
...ges based on the table definition type (see the second table where 'Alice' now has id = 4; the first table is doing more of what I expect it to do, keep the PRIMARY KEY the same). Be aware of this effect.
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What is the result of % in Python?
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@P.MyerNore I know this is almost 3 years later, but may help others. Read the first highlighted para in sec. 5.6.2 linked above by KurzedMetal. The "x %= {}" is simply a short-form for "x = x % {...}"
– Sujay Phadke
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How to show a GUI message box from a bash script in linux?
...esources, for those that have been using Linux or Unix for long enough to know what it means (.Xdefaults, anyone ?).
xmessage -buttons Ok:0,"Not sure":1,Cancel:2 -default Ok -nearmouse "Is xmessage enough for the job ?" -timeout 10
kdialog
(not tested)
In a PPA
YAD: Zenity On Steroids [Display...
TypeError: 'module' object is not callable
...ple who took time to up vote (myself included) who didn't understand this. Now, it's obvious, and next time I reach in my toolbox, I will find this tool when a module is reported as "not callable". Getting started with a new language is the toughest part.
– jmort253
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Visual Studio Immediate window: how to see more than the first 100 items
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I know this is way late. However, If you add your object to the watch window. Expand the properties, where all are displayed. Then Ctrl-A and Copy. You can then paste in excel to get an organized list of properties and their val...
How to find the length of a string in R
... a string (number of characters in a string) without splitting it in R? I know how to find the length of a list but not of a string.
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What is the difference between visibility:hidden and display:none?
...the line. Everyone in line will then move forward one position to fill the now empty slot. This is like display:none.
Contrast this with the similar situation, but that someone in front of you puts on an invisibility cloak. While viewing the line, it will look like there is an empty space, but peop...