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How to get Erlang's release version number from a shell?
Many programs return their version number with a command like:
11 Answers
11
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How to change the indentation width in emacs javascript mode
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Using this mechanism the tab width remains at 8 and so tabs are only used if indent level is 4 (2x4=8) or more. How do you set tab width to 2 or 4 so that tabs instead of spaces are used? I've tried a bunch of settings, e.g. (setq tab-width 4) but to no avail. My goal: use...
Delete all but the most recent X files in bash
Is there a simple way, in a pretty standard UNIX environment with bash, to run a command to delete all but the most recent X files from a directory?
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Java: how do I get a class literal from a generic type?
... String.class denotes the Class
object that represents the type
String and is identical to the
Class object that is returned when
method getClass is invoked on a
String object. A class literal can
be used for runtime type checks and
for reflection.
Parameterized types lose their ...
SQL DROP TABLE foreign key constraint
...ferencing your table, you could use this SQL (if you're on SQL Server 2005 and up):
SELECT *
FROM sys.foreign_keys
WHERE referenced_object_id = object_id('Student')
and if there are any, with this statement here, you could create SQL statements to actually drop those FK relations:
SELECT
'...
How to convert CSV file to multiline JSON?
...t yourself. So we just need to pull the loop out of the call to json.dump and interpose newlines for each document written.
import csv
import json
csvfile = open('file.csv', 'r')
jsonfile = open('file.json', 'w')
fieldnames = ("FirstName","LastName","IDNumber","Message")
reader = csv.DictReader(...
Implement C# Generic Timeout
...CallWithTimeout. This will cancel the long running thread by aborting it, and swallowing the ThreadAbortException:
Usage:
class Program
{
static void Main(string[] args)
{
//try the five second method with a 6 second timeout
CallWithTimeout(FiveSecondMethod, 6000);
...
Disable file preview in VS2012
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In Tools > Options > Environment > Tabs and Windows, you can disable it by unckecking "Solution explorer" under Preview tab.
I find it using the "Quick launch" new feature. Simply type "preview", and a link to the setting will be suggested. Great new feature of VS...
Run a single migration file
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Sometimes you need a './' in front of the require path, and it definitely doesn't update the schema_migrations.
– Beardo
Aug 26 '11 at 15:26
14
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Is it possible to refresh a single UITableViewCell in a UITableView?
...UITableViewRowAnimationNone];
[self.tableView endUpdates];
In Xcode 4.6 and higher:
[self.tableView beginUpdates];
[self.tableView reloadRowsAtIndexPaths:@[indexPathOfYourCell] withRowAnimation:UITableViewRowAnimationNone];
[self.tableView endUpdates];
You can set whatever your like as animat...