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Run two async tasks in parallel and collect results in .NET 4.5
...ing");
var task1 = Sleep(5000);
var task2 = Sleep(3000);
int[] result = await Task.WhenAll(task1, task2);
Console.WriteLine("Slept for a total of " + result.Sum() + " ms");
}
private async static Task<int> Sleep(int ms)
...
How does Rails keep track of which migrations have run for a database?
... schema_migrations.
For example, running a migration file named 20120620193144_create_users.rb will insert a new row with a version of 20120620193144 into the schema_migrations table.
You are free at any point to introduce migrations with earlier versions. Rails will always run any new migrations ...
How to alter a column and change the default value?
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answered Jul 3 '12 at 13:54
fancyPantsfancyPants
44.9k1717 gold badges7878 silver badges8989 bronze badges
...
How to use enum values in f:selectItem(s)
...ter, make the enum value a property key of a localized resource bundle (EL 3.0 required):
<f:selectItems value="#{data.statuses}" var="status"
itemValue="#{status}" itemLabel="#{text['data.status.' += status]}" />
with this in a properties file associated with resource bundle #{text}
d...
How to create a hex dump of file containing only the hex characters without spaces in bash?
...
Giacomo1968
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answered Apr 10 '10 at 20:27
mark4omark4o
...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
... |
edited Jun 9 '16 at 18:37
Community♦
111 silver badge
answered May 12 '10 at 17:13
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Right query to get the current number of connections in a PostgreSQL DB
...
233
Those two requires aren't equivalent. The equivalent version of the first one would be:
SELECT...
Resolving conflicts: how to accept “their” changes automatically?
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answered Mar 21 '13 at 11:10
NofflsNoffls
5,07122 gold badges2626 silver badges3535 bronze badges
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How can I use “:” as an AWK field separator?
...
399
"-F" is a command line argument, not AWK syntax. Try:
echo "1: " | awk -F ":" '/1/ {print $1...
Passing an array as a function parameter in JavaScript
...
Michał Perłakowski
63.1k2121 gold badges133133 silver badges148148 bronze badges
answered May 18 '10 at 9:44
KaptajnKoldK...