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What is the difference between Reader and InputStream?

... makes your easier to internationalize and maintain. Note: This is just an extra information for exploring Java I/O codes is that, the design pattern of Java I/O implementation follows decorator design pattern. If you familiar with decorator design pattern then you can easily catchup the implementat...
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How do I toggle an element's class in pure JavaScript?

...e seperators. for example it doesn't work if class name contain dash ("-") char: btn, btn-red will both match'\\b' + 'btn' + '\\b' !! – S.Serpooshan Feb 5 '19 at 6:47 ...
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Why is “if not someobj:” better than “if someobj == None:” in Python?

...test for equality when you want to compare objects of the same nature (two strings, two numbers, ...) and to check for identity only when using sentinel values (None meaning not initialized for a member field for exemple, or when using the getattr or the __getitem__ methods). To summarize, we have ...
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deny direct access to a folder and file by htaccess

...or a timestamp and validation. The validation could be, say, the first 10 chars of an MD5 of the timestamp and some internal secret. On processing the submit you can then (i) validate that the timestamp and validation match, and (ii) the timestamp is within, say, 15 minutes of the current time. T...
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Reducing MongoDB database file size

... UPDATE: with the compact command and WiredTiger it looks like the extra disk space will actually be released to the OS. UPDATE: as of v1.9+ there is a compact command. This command will perform a compaction "in-line". It will still need some extra space, but not as much. MongoDB comp...
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if (key in object) or if(object.hasOwnProperty(key)

... @Lor: ({foo:"bar"}).hasOwnProperty("toString") vs "toString" in ({foo:"bar"}) – I Hate Lazy Nov 29 '12 at 19:24 ...
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How to show Page Loading div until the page has finished loading?

... window (not the document) finishes loading, then it will wait an optional extra few seconds. Works with jQuery 3 (it has a new window load event) No image needed but it's easy to add one Change the delay for more branding or instructions Only dependency is jQuery. CSS loader c...
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How do I make a splash screen?

... <activity android:name="MainActivity" android:label="@string/app_name" android:theme="@style/splashScreenTheme" > Third, Update your theme in your onCreate() launch activity. protected void onCreate(Bundle savedInstanceState) { // Make sure this is before calli...
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically

...===================== 7. Consider the excellent http://www.fail2ban.org 8. Extra SSH tunnel to access a MySQL (bind = 127.0.0.1) server share | improve this answer | follow ...
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How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?

...res6: Option[List[Int]] = Some(List(1, 2, 3)) scala> Registry.get[List[String]]("a") res7: Option[List[String]] = None When storing an element, we store a "Manifest" of it too. A Manifest is a class whose instances represent Scala types. These objects have more information than JVM does, which ...