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Ruby class types and case statements
... the when clause. In Ruby
case item
when MyClass
...
when Array
...
when String
...
is really
if MyClass === item
...
elsif Array === item
...
elsif String === item
...
Understand that case is calling a threequal method (MyClass.===(item) for example), and that method can be defined to do wha...
Difference between Document-based and Key/Value-based databases?
...t. JSON also supports arrays and understands different data types, such as strings, numbers and boolean values.
Querying
I believe column-family stores can only be queried by key, or by writing map-reduce functions. You cannot query the values like you would in an SQL database. If your application...
Xcode 4 and Core Data: How to enable SQL Debugging
... Any way to print this -com.apple.CoreData.MigrationDebug 1 on string file, so that user can upload the log file
– rhlnair
Aug 22 '14 at 10:42
add a comment
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Should I pass an std::function by const-reference?
...ought using const-references where they should be used is common practice (strings and vectors come to mind).
– Sven Adbring
Aug 21 '13 at 19:14
...
What is a StoryBoard ID and how can i use this?
...
The storyboard ID is a String field that you can use to create a new ViewController based on that storyboard ViewController. An example use would be from any ViewController:
//Maybe make a button that when clicked calls this method
- (IBAction)bu...
How to remove specific element from an array using python
...
['bala@bala.com']
This will remove the first occurence that matches the string.
EDIT: After your edit, you still don't need to iterate over. Just do:
index = initial_list.index(item1)
del initial_list[index]
del other_list[index]
...
Unable to forward search Bash history similarly as with CTRL-r
...ds in the History":
To search backward in the history for a particular string, type C-r.
Typing C-s searches forward through the history.
The problem with Ctrl-S however is that sometimes collides with XON/XOFF flow control (in Konsole for instance). The searching is a readline feature howev...
Windows: How to specify multiline command on command prompt?
... used to escape the next character on the command line. (Like \ is used in strings.) Characters that need to be used in the command line as they are should have a ^ prefixed to them, hence that's why it works for the newline.
For reference the characters that need escaping (if specified as command ...
How to download/checkout a project from Google Code in Windows?
.../trunk/ projectname-read-only
Note the space between the URL and the last string is intentional, the last string is the folder name into which the source will be downloaded.
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Is it possible to hide extension resources in the Chrome web inspector network tab?
...n the issue I originally opened.
In the network tab filter box, enter the string -scheme:chrome-extension (as shown below):
This is case-sensitive, so make sure it's lowercase. Doing this will hide all resources which were requested by extensions.
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