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@ variables in Ruby on Rails
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Does your class have an attr_accessor defined with the same name @DanDevine? attr_accessor is syntactic sugar that generates a getter\setter for you. If you are getting the value without the @ symbol the code receives the variable because it's calling t...
How to check if a table exists in a given schema
...sts" (no matter who's asking), querying the information schema (information_schema.tables) is incorrect, strictly speaking, because (per documentation):
Only those tables and views are shown that the current user has access
to (by way of being the owner or having some privilege).
The query p...
What is the difference between mocking and spying when using Mockito?
... we create a mock of the ArrayList class:
@Test
public void whenCreateMock_thenCreated() {
List mockedList = Mockito.mock(ArrayList.class);
mockedList.add("one");
Mockito.verify(mockedList).add("one");
assertEquals(0, mockedList.size());
}
As you can see – adding an element in...
How to remove convexity defects in a Sudoku square?
...he result. These points are the grid line intersections:
centerOfGravity[l_] :=
ComponentMeasurements[Image[l], "Centroid"][[1, 2]]
gridCenters =
Table[centerOfGravity[
ImageData[Dilation[Image[h], DiskMatrix[2]]]*
ImageData[Dilation[Image[v], DiskMatrix[2]]]], {h,
horizontalGrid...
Understanding implicit in Scala
... the implicit class in the scope you are wanting to use
import Extensions._
2.meterToCm // result 200
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Precision String Format Specifier In Swift
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a simple way is:
import Foundation // required for String(format: _, _)
print(String(format: "hex string: %X", 123456))
print(String(format: "a float number: %.5f", 1.0321))
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What does ':' (colon) do in JavaScript?
... is a float. Pretty sur that's what that means.
– Sal_Vader_808
May 14 '17 at 11:08
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Multiline TextView in Android?
... android:id="@+id/address1"
android:gravity="left"
android:layout_height="fill_parent"
android:layout_width="wrap_content"
android:maxLines="4"
android:lines="4"
android:text="Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labo...
Disable submit button when form invalid with AngularJS
...rmset, and therefore is required to have a name w/ a hyphen in it (like "my_formset_name-0")?
– trubliphone
Oct 7 '15 at 4:08
2
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How to return PDF to browser in MVC?
... document.Open();
// Set up fonts used in the document
Font font_heading_1 = FontFactory.GetFont(FontFactory.TIMES_ROMAN, 19, Font.BOLD);
Font font_body = FontFactory.GetFont(FontFactory.TIMES_ROMAN, 9);
// Create the heading paragraph with the headig font
Paragraph paragraph...