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Factory Pattern. When to use factory methods?
...or further application development, then factory method is one of the best selections for creation pattern. Reason behind; We know that when to create an object of required functionality(s) but type of object will remain undecided or it will be decided ob dynamic parameters being passed.
Now the po...
How to remove all of the data in a table using Django
... /admin/dc_dash/model_4/
relation "dc_dash_model_4" does not exist
LINE 1: SELECT COUNT(*) AS "__count" FROM "dc_dash_model_4"
Do consider that - if we do not go to the ADMIN Console and try and see objects of the model - which have been already deleted - the Django app works just as intended.
...
In .NET, which loop runs faster, 'for' or 'foreach'?
...
Enumerable.Select has an overload that lets you obtain the index of the item, so even the need for an index does not mandate using for. See msdn.microsoft.com/en-us/library/bb534869.aspx
– TrueWill
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Search in all files in a project in Sublime Text 3
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Solution:
Use the Search all shortcut: Ctrl+Shift+F, then select the folder in the "Where:" box below. (And for Mac, it's ⌘+Shift+F).
If the root directory for the project is proj, with subdirectories src and aux and you want to search in all subfolders, use the proj folder. To r...
How do I merge my local uncommitted changes into another Git branch?
...check the various stash made in different branch
git stash apply x # to select the right one
As commented by benjohn (see git stash man page):
To also stash currently untracked (newly added) files, add the argument -u, so:
git stash -u
...
How can I get the external SD card path for Android 4.0+?
...e directory mnt first and work from there..
You should use some type of selection method to choose which sdcard to use:
File storageDir = new File("/mnt/");
if(storageDir.isDirectory()){
String[] dirList = storageDir.list();
//TODO some type of selecton method?
}
...
How do I make this file.sh executable via double click?
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You can just tell Finder to open the .sh file in Terminal:
Select the file
Get Info (cmd-i) on it
In the "Open with" section, choose "Other…" in the popup menu
Choose Terminal as the application
This will have the exact same effect as renaming it to .command except… you don't h...
is of a type that is invalid for use as a key column in an index
...ey nvarchar(max)
)
RETURNS bit
AS
BEGIN
declare @res bit
if exists(select * from key_value where [key] = @key)
set @res = 0
else
set @res = 1
return @res
END
But note that a native index is more performant than a check constraint so unless you really can't specify ...
Difference between $(document.body) and $('body')
...ctly to jQuery. Alternatively, when you pass the string 'body', the jQuery selector engine has to interpret the string to figure out what element(s) it refers to.
In practice either will get the job done.
If you are interested, there is more information in the documentation for the jQuery function...
Should I put input elements inside a label element?
...he first example given here by superUntitled for textboxes, textareas, and selects. But for radio buttons and checkboxes, I usually use the third example, where I want the input before the accompanying text and don't want the same kind of fixed width and/or floating that the rest of the labels and f...