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Blocks and yields in Ruby
...y:
days = ["monday", "tuesday", "wednesday", "thursday", "friday"]
# select those which start with 't'
days.select do | item |
item.match /^t/
end
=> ["tuesday", "thursday"]
Or, we can also provide a custom sort algorithm, for instance based on the string size:
days.sort do |x,...
Razor comment syntax
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In visual studio, select some code/markup in your razor view and press Ctrl+K, Ctrl+C, and it'll comment the selection as described above.
– MrBoJangles
Feb 17 '11 at 18:12
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Is using Random and OrderBy a good shuffle algorithm?
...e naive version). Durstenfeld/Knuth achieve O(n) not by assignment, but by selection from a decreasing set and swapping. This way the random number selected may repeat and the algorithm only takes O(n).
– tvanfosson
Aug 17 '09 at 12:18
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How to install both Python 2.x and Python 3.x in Windows
...ed Python 2.7.6.
How to...
Start > in the search type in environment select "Edit environment variables to your account"1
Scroll down to Path, select path, click edit.
Add C:\Python27;
so you should have paths to both versions of Python there, but if you don't this you can easily edit it so th...
Is there a good reason to use upper case for SQL keywords? [closed]
...re highlighted, not the entire query. His second example would look like:
SELECT name, id, xtype, uid, info, status,
base_schema_ver, replinfo, parent_obj, crdate,
ftcatid, schema_ver, stats_schema_ver, type,
userstat, sysstat, indexdel, refdate, version,
deltrig, instrig, updtrig, seltrig, cat...
Elegant way to combine multiple collections of elements?
...in a collection (e.g., of type List<List<int>> , I could use SelectMany to combine them all into one collection.
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Using varchar(MAX) vs TEXT on SQL Server
...es ('b')
insert into @table values ('c')
insert into @table values ('d')
select *
from @table
where a ='a'
This give an error:
The data types text and varchar are incompatible in the equal to operator.
Wheras this does not:
declare @table table (a varchar(max))
Interestingly, LIKE still wo...
How to debug stream().map(…) with lambda expressions?
... illustrate:
1- Press F7 (step into) key, will display the highlights (or selection mode)
2- Use Tab multiple times to select the snippet to debug
3- Press F7 (step into) key to step into
share
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Can you use hash navigation without affecting history?
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Unless you use :target selectors ... then history functions are useless, as that part of the spec (css interaction with history ops) seems to be not defined currently, and style does not get recomputed on history replace by most/all browsers.
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SQL Server Management Studio won't let me add an index to a table
...l I had to do was close the Table Designer and right-click on the Index to select "Properties" in order to add/edit them.... All these years wasted on writing custom scripts. face-palm I want my youth back!
– MikeTeeVee
Nov 17 '15 at 19:55
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