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What is the difference between Scala's case class and class?
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They aren't instances of Product1, Product2, etc., however.
– Jean-Philippe Pellet
Jan 13 '11 at 16:43
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How to read a large file - line by line?
I want to iterate over each line of an entire file. One way to do this is by reading the entire file, saving it to a list, then going over the line of interest. This method uses a lot of memory, so I am looking for an alternative.
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Checkout another branch when there are uncommitted changes on the current branch
...are on branch1. A git checkout branch2 would have to do this:
For every file that is in branch1 and not in branch2,1 remove that file.
For every file that is in branch2 and not in branch1, create that file (with appropriate contents).
For every file that is in both branches, if the version in bra...
What does __FILE__ mean in Ruby?
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It is a reference to the current file name. In the file foo.rb, __FILE__ would be interpreted as "foo.rb".
Edit: Ruby 1.9.2 and 1.9.3 appear to behave a little differently from what Luke Bayes said in his comment. With these files:
# test.rb
puts __FILE__
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Split Strings into words with multiple word boundary delimiters
...e very powerful. The regular expression '\w+' means "a word character (a-z etc.) repeated one or more times". There's a HOWTO on Python regular expressions here: amk.ca/python/howto/regex
– RichieHindle
Jul 4 '09 at 19:44
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Using os.walk() to recursively traverse directories in Python
...on
import os
# traverse root directory, and list directories as dirs and files as files
for root, dirs, files in os.walk("."):
path = root.split(os.sep)
print((len(path) - 1) * '---', os.path.basename(root))
for file in files:
print(len(path) * '---', file)
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Making a WinForms TextBox behave like your browser's address bar
...to work in all the scenarios (mousing down, selecting text, tabbing focus, etc.)
bool alreadyFocused;
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textBox1.GotFocus += textBox1_GotFocus;
textBox1.MouseUp += textBox1_MouseUp;
textBox1.Leave += textBox1_Leave;
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void textBox1_Leave(object sender, EventArgs e)
{
alreadyFocused = fa...
SQL Server: Make all UPPER case to Proper Case/Title Case
...nd it works with any language, including Russian, German, Thai, Vietnamese etc.
It will make uppercase anything after ' or - or . or ( or ) or space (obviously :).
CREATE FUNCTION [dbo].[fnToProperCase]( @name nvarchar(500) )
RETURNS nvarchar(500)
AS
BEGIN
declare @pos int = 1
, @pos2 in...
Insert text with single quotes in PostgreSQL
...scape s'tring from text column on insertion in case of procedural language etc, then you can use quote_literal(column_name) string function.
– alexglue
Apr 9 '14 at 9:59
1
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Express next function, what is it really for?
...times next is called without arguments. Anybody knows of a good tutorial etc that describes the next function?
8 Answer...