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Add a dependency in Maven
...this to successfully add dependencies for my maven projects on both Google App Engine and Heroku.
– Leo C Han
Jan 6 '15 at 18:53
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How should I validate an e-mail address?
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Don't use a reg-ex.
Apparently the following is a reg-ex that correctly validates most e-mails addresses that conform to RFC 2822, (and will still fail on things like "user@gmail.com.nospam", as will org.apache.commons.validator.routines.EmailVa...
How to export/import PuTTy sessions list?
...egistry Editor Version 5.00" | Out-File putty.reg
"" | Out-File putty.reg -Append
foreach ($reg in $registry) {
"[$reg]" | Out-File putty.reg -Append
foreach ($prop in $reg.property) {
$propval = $reg.GetValue($prop)
if ("".GetType().Equals($propval.GetType())) {
'"' + "$prop" + '...
How do I use .toLocaleTimeString() without displaying seconds?
...me. But never read back dates from UI elements. That should come from your app layer. And always test in Safari. They've been IE6-level jerks about the date object.
– Erik Reppen
Mar 30 '15 at 2:45
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Using Java 8 to convert a list of objects into a string obtained from the toString() method
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One simple way is to append your list items in a StringBuilder
List<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(3);
StringBuilder b = new StringBuilder();
list.forEach(b::append);
Sys...
Django connection to PostgreSQL: “Peer authentication failed”
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Had the same problem with a Rails app, and it was the same solution - the host needed to be configured in config/database.yml - that is to say, in that file I needed to add the line host: localhost (or wherever you postgres server is - mine was local)
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Copying data from one SQLite database to another
...o attach Database X with Database Y using the ATTACH command, then run the appropriate Insert Into commands for the tables you want to transfer.
INSERT INTO X.TABLE SELECT * FROM Y.TABLE;
Or, if the columns are not matched up in order:
INSERT INTO X.TABLE(fieldname1, fieldname2) SELECT fieldname...
How do you use Mongoose without defining a schema?
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Actually "Mixed" (Schema.Types.Mixed) mode appears to do exactly that in Mongoose...
it accepts a schema-less, freeform JS object - so whatever you can throw at it. It seems you have to trigger saves on that object manually afterwards, but it seems like a fair trad...
What's the state of the art in email validation for Rails?
...ation is also low. Validate generously, and worry about errors when they happen.
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How to detect online/offline event cross-browser?
...cable.
Mozilla Firefox (before version 41), Opera, and IE take a different approach, and consider you "online" unless you explicitly pick "Offline Mode" in the browser - even if you don't have a working network connection.
There are valid arguments for the Firefox/Mozilla behavior, which are outline...