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NSOperation vs Grand Central Dispatch
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GCD is a low-level C-based API that enables very simple use of a task-based concurrency model. NSOperation and NSOperationQueue are Objective-C classes that do a similar thing. NSOperation was introduced first, but as of 10.5 and iOS 2, NSOperationQueu...
What is the most efficient way to deep clone an object in JavaScript?
... in Node.js currently (as of Node 11) exposes the structured serialization API directly, but this functionality is still marked as "experimental", and subject to change or removal in future versions. If you're using a compatible version, cloning an object is as simple as:
const v8 = require('v8');
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Why do all browsers' user agents start with “Mozilla/”?
...se the above website to get the formatted user agent and OS.
They have an API which you can use directly...
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Storing Objects in HTML5 localStorage
...ou get the functionality that you really wanted even though underneath the API only supports strings.
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Should one use < or
...tempted to use <=. So:
for (int i=0; i < count; i++) // For 0-based APIs
for (int i=1; i <= count; i++) // For 1-based APIs
I would expect the performance difference to be insignificantly small in real-world code.
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How do I set environment variables from Java?
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on Android the interface is exposed via Libcore.os as a kind of hidden API.
Libcore.os.setenv("VAR", "value", bOverwrite);
Libcore.os.getenv("VAR"));
The Libcore class as well as the interface OS is public. Just the class declaration is missing and need to be shown to the linker. No need to a...
How to format strings in Java
...rmat symbols -- but can also differ. See download.oracle.com/javase/6/docs/api/java/util/… for the full syntax.
– Andy Thomas
Jun 21 '11 at 21:11
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Is there a date format to display the day of the week in java?
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Yep - 'E' does the trick
http://download.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html
Date date = new Date();
DateFormat df = new SimpleDateFormat("yyyy-MM-E");
System.out.println(df.format(date));
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How do you pass custom environment variable on Amazon Elastic Beanstalk (AWS EBS)?
...rmat-options
Update
To prevent committing to your repository values like API keys, secrets and so on, you can put a placeholder value.
option_settings:
- option_name: SOME_API_KEY
value: placeholder-value-change-me
Later you can go to the AWS admin panel (Environment Details -> Edit C...
Android search with Fragments
...to search in a fragment using the standard ActionBar SearchView ActionView API. This will work back to Android 2.1 (API level 7) too using AppCompat support classes v7.
In your fragment:
@Override
public void onCreateOptionsMenu (Menu menu, MenuInflater inflater){
inflater.inflate(R.menu.sear...