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How to add to an existing hash in Ruby
...'
# This is then available immediately
hash[:b]
# => "Bee"
# The hash now contains both keys
hash
# => { :a => 'a', :b => 'Bee' }
Ruby on Rails confuses this somewhat by providing HashWithIndifferentAccess where it will convert freely between Symbol and String methods of addressing.
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difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
...ctivity.this and getBaseContext, they all offer reference to the context.
Now the thing confuses is the declaration of different contexts and their specific-usage. To make things simple, you should count two types of context available in the Android framework.
Application Context
Activity Context...
WPF ToolBar: how to remove grip and overflow
...opy
I recommend adding the copy to a Resource Dictionary
Click Ok
You'll now be editing the control template for the ToolBarPanel, and can set the visibility to Collapsed for the grip and overflow signal. You can rinse and repeat for the other controls. It is a bit time consuming, but isn't terrib...
how to log in to mysql and query the database from linux terminal
...nect to mysql database on linux machine from windows machine using sqlyog.
Now I want to execute queries on linux machine only using linux terminal
...
Suggestions for debugging print stylesheets?
...s should do the trick.
Update: The menus have changed in DevTools.
It can now be found by clicking on the "three-dots" menu in the top right corner > More Tools > Rendering Settings > Emulate media > print.
Source: Google DevTools page*
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Java 7 language features with Android
...ng if anyone has tried using new Java 7 language features with Android?
I know that Android reads the bytecode that Java spits out and turns it to dex. So I guess my question is can it understand the bytecode of Java 7?
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Does “git fetch --tags” include “git fetch”?
..., it is not because --tags was set. As such, this special error message is now irrelevant.
To prevent confusion, remove this error message.
With Git 2.11+ (Q4 2016) git fetch is quicker.
See commit 5827a03 (13 Oct 2016) by Jeff King (peff).
(Merged by Junio C Hamano -- gitster -- in commit...
What is the difference between a weak reference and an unowned reference?
...
Both weak and unowned references do not create a strong hold on the referred object (a.k.a. they don't increase the retain count in order to prevent ARC from deallocating the referred object).
But why two keywords? This distinction has to d...
Stop “developer tools access needs to take control of another process for debugging to continue” ale
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I had done the same thing as above. The problem now is that I am not able to get internet wifi. I am not sure how this is happening.
– Nareshkumar
Feb 15 '12 at 16:51
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Django: How to completely uninstall a Django app?
...py makemigrations -n drop_all_tables my_app_to_remove
The directory looks now like this:
my_app_to_remove/
my_app_to_remove/__init__.py
my_app_to_remove/migrations
my_app_to_remove/migrations/0001_initial.py
my_app_to_remove/migrations/....
my_app_to_remove/migrations/0030_drop_all_tables.py
my_ap...