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Nested classes' scope?
... @batbrat it means that the reference to Outer is looked up anew every time you do Inner.inner_var. So if you rebind the name Outer to a new object, Inner.inner_var will start returning that new object.
– Felipe
Nov 20 '14 at 13:44
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Is there any particular difference between intval and casting to int - `(int) X`?
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I did benchmarking on ideone - (int) typecast is faster x 2 ! (int):ideone.com/QggNGc , intval():ideone.com/6Y8mPN
– jave.web
Aug 12 '14 at 18:32
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Where/How to getIntent().getExtras() in an Android Fragment? [duplicate]
...setup, plug in the details fragment.
DetailsFragment details = new DetailsFragment();
details.setArguments(getIntent().getExtras());
getSupportFragmentManager().beginTransaction().add(
android.R.id.content, details).commit();
}
}
}
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REST API Best practice: How to accept list of parameter values as input [closed]
We are launching a new REST API and I wanted some community input on best practices around how we should have input parameters formatted:
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Best way to check if a Data Table has a null value in it
...aRow row in dataTable.Rows)
{
if(row.IsNull("myColumn"))
throw new Exception("Empty value!")
}
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When to use a key/value store such as Redis instead/along side of a SQL database?
...ment you don't need to switch to Redis. You can just use it in order to do new things that were not possible before, or in order to fix old problems.
Use cases the article touches on:
Slow latest items listings in your home page
Leaderboards and related problems
Order by user votes and time
Impl...
Add UIPickerView & a Button in Action sheet - How?
...ent screens where I all users to select from a list of options.
Create a new UITableViewController subclass, SimpleTableViewController.
Create a UITableViewController in your storyboard (embedded in a navigation controller) and set its custom class to SimpleTableViewController.
Give the navigation...
Purge Kafka Topic
...181 --alter --topic <topic name> --config retention.ms=1000
And in newer Kafka releases, you can also do it with kafka-configs --entity-type topics
kafka-configs.sh --zookeeper <zkhost>:2181 --entity-type topics --alter --entity-name <topic name> --add-config retention.ms=1000
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How can I change the color of pagination dots of UIPageControl?
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In iOS 6 you can set the tint color of UIPageControl:
There are 2 new properties:
pageIndicatorTintColor
currentPageIndicatorTintColor
You can also use the appearance API to change the tint color of all page indicators.
If you are targeting iOS 5 make sure it doesn't crash:
if ([page...
Insert a row to pandas dataframe
...easiest to append dataframes, not series. In your case, since you want the new row to be "on top" (with starting id), and there is no function pd.prepend(), I first create the new dataframe and then append your old one.
ignore_index will ignore the old ongoing index in your dataframe and ensure tha...