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Map over object preserving keys
...
With Underscore
Underscore provides a function _.mapObject to map the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapVa...
Set cache-control for entire S3 bucket automatically (using bucket policies?)
...y are case sensitive and must be entered accurately
or you'll keep getting errors about invalid signatures or similar.
Remember to add s3:ListAllMyBuckets permissions to the keys or you will get an AccessDenied error while testing access.)
./s3cmd --recursive modify --add-header="Cache-Control:publi...
Dots in URL causes 404 with ASP.NET mvc and IIS
... allowed me to catch the url /WEB-INF./web.xml and redirect it to a custom error page when very many other ways I tried did not work.
– quentin-starin
Oct 9 '13 at 15:58
3
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Unique combination of all elements from two (or more) vectors
... what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 DEF 2012-05-01
3 GHI 2012-05-01
4 ABC 2012-05-02
5 DEF 2012-05-02
6 GHI 2012-05-02
7 ABC 2012-05-03
8 DEF 2012-05-03
9 GHI 2012-05-03
10 ABC 2012-05-04
11 DEF 2012-05-04
12 GHI 2012-05-04
13 ABC 20...
Detect network connection type on Android
...er cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo();
}
/**
* Check if there is any connectivity
* @param context
* @return
*/
public static boolean isConnected(Context context){
Networ...
How do I drop a function if it already exists?
...issue the DROP FUNCTION <name> statement and not worry about any SQL error that might come back. I consider that standard procedure in the DBA realm.
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...round this. I have a class here: http://divillysausages.com/blog/safenumber_and_safeint
Basically, you have an object to store your score. In the setter it multiplies the value that you pass it with a random number (+ and -), and in the getter you divide the saved value by the random multiplicator ...
What does gcc's ffast-math actually do?
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@user: The magnitude of the error depends on the input data. It should be small relative to the result. For example, if x is smaller than 10, the error in Mystical's example will be down around 10^-10. But if x = 10e20, the error is likely to be many...
Selecting only numeric columns from a data frame
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When there is no numeric column, the following error arise undefined columns selected. How do you avoid it ?
– Yohan Obadia
Aug 13 '16 at 14:15
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How to use UTF-8 in resource properties with ResourceBundle
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edited Apr 4 '19 at 15:05
dedek
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answered Jul ...