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Use of Java's Collections.singletonList()?
What is the use of Collections.singletonList() in Java? I understand that it returns a list with one element. Why would I want to have a separate method to do that? How does immutability play a role here?
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Coding Style Guide for node.js apps? [closed]
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I'd review the coding standards checked by JSLint or look at the author of NPM (Isaac Shlueter's) coding standards.
You could also look at the style used by notable Node.JS coders:
TJ Holowaychuk
Isaac Shlueter
Tim Caswell
Jeremy Ashkenas
Felix G...
How to know when UITableView did scroll to bottom in iPhone
...ld like to know when a UITableView did scroll to bottom in order to load and show more content, something like a delegate or something else to let the controller know when the table did scroll to bottom.
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Enable Vim Syntax Highlighting By Default
I know how to turn syntax highlighting on and off in vim by running this in the editor:
6 Answers
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Removing index column in pandas when reading a csv
I have the following code which imports a CSV file. There are 3 columns and I want to set the first two of them to variables. When I set the second column to the variable "efficiency" the index column is also tacked on. How can I get rid of the index column?
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Is log(n!) = Θ(n·log(n))?
...og(n) + log(n) + ... + log(n)
= n*log(n)
And you can get the lower bound by doing a similar thing after throwing away the first half of the sum:
log(1) + ... + log(n/2) + ... + log(n) >= log(n/2) + ... + log(n)
= log(n/2) ...
git: switch branch without detaching head
I have a repository on github with a main branch (master) and a branch for some experimental work. I made some commits and pushed to the experimental branch and everything was fine.
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JavaScript: Overriding alert()
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+1 on the proxy pattern to truly override the func and ensure it doesn't get tampered with!
– Josh Stodola
Nov 13 '09 at 15:15
15
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Return 0 if field is null in MySQL
... @MarkByers can you show why Kevin's example in the comment is wrong and what it should actually be?
– Michael
Aug 10 '16 at 13:44
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RegEx: Grabbing values between quotation marks
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([""']) match a quote; ((?=(\\?))\2.) if backslash exists, gobble it, and whether or not that happens, match a character; *? match many times (non-greedily, as to not eat the closing quote); \1 match the same quote that was use for opening.
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