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How to debug a maven goal with intellij idea?
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What if I want to run tests using mvn test -Dtest=com.example.MyTest (my test case fails only when run using maven) - IDEA breakpoints are ignored in this case, it seems... :(
– RobertG
Jun 20 '17 at 14:52
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Create a devise user from Ruby console
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a. first is skip confirmation:
newuser = User.new({email: 'superadmin1@testing.com', password: 'password', password_confirmation: 'password'})
newuser.skip_confirmation!
newuser.save
b. or use confirm! :
newuser = User.new({email: 'superadmin2@testing.com', password: 'password', password_conf...
Password masking console application
... the currently accepted answer, the final else clause would benefit from a test if (!char.IsControl(i.KeyChar)) (or at the very least if (i.KeyChar != '\u0000')).
– Peter Taylor
Nov 11 '15 at 12:22
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Capture screenshot of active window?
...yFromScreen(Point.Empty, Point.Empty, bounds.Size);
}
bitmap.Save("test.jpg", ImageFormat.Jpeg);
}
for capturing current window use
Rectangle bounds = this.Bounds;
using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
{
using (Graphics g = Graphics.FromImage(bitmap))
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Import CSV to SQLite
...sqlite> create table foo(a, b);
sqlite> .mode csv
sqlite> .import test.csv foo
The first command creates the column names for the table. However, if you want the column names inherited from the csv file, you might just ignore the first line.
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
... and get slightly different results with different Intel Core i7 cpus.
My test at work with an Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
The 'numbers' are in 1000s of bytes per second processed.
type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
md5 64257.97k ...
LINQ, Where() vs FindAll()
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I did some tests on a list of 80K objects and found that Find() can be up to 1000% faster than using a Where with FirstOrDefault(). I didn't know that until testing a timer before and after each call. Sometimes it was the same time, o...
String concatenation in Ruby
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The + operator is the normal concatenation choice, and is probably the fastest way to concatenate strings.
The difference between + and << is that << changes the object on its left hand side, and + doesn't.
irb(main):001:0> s = 'a'
=> "a"
irb(main):002:0> s + 'b'
=> "ab"
i...
How do you get the width and height of a multi-dimensional array?
... other posts are confused about which dimension is which. Here's an NUNIT test that shows how 2D arrays work in C#
[Test]
public void ArraysAreRowMajor()
{
var myArray = new int[2,3]
{
{1, 2, 3},
{4, 5, 6}
};
int rows = myArray.GetLength(0);
int...
jquery-ui sortable | How to get it work on iPad/touchdevices?
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Found a solution (only tested with iPad until now!)!
http://touchpunch.furf.com/content.php?/sortable/default-functionality
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