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Do short-circuiting operators || and && exist for nullable booleans? The RuntimeBinder sometimes thinks so

I read the C# Language Specification on the Conditional logical operators || and &&, also known as the short-circuiting logical operators. To me it seemed unclear if these existed for nullable ...

Android Layout Weight

I am new to Android development and I have a question about setting weight in a linear layout. I am trying to create a row with two custom buttons and a custom edit text. The edit text should only ...

Why can't I save CSS changes in Firebug? [closed]

Firebug is the most convenient tool I've found for editing CSS - so why isn't there a simple "save" option for CSS?I am always finding myself making tweaks in Firebug, then going back to my original ...

how to prevent “directory already exists error” in a makefile when using mkdir

I need to generate a directory in my makefile and I would like to not get the "directory already exists error" over and over even though I can easily ignore it.I mainly use mingw/msys but would like ...

Can I set “android:layout_below” at runtime, programmatically?

Is it possible when creating a relative layout at runtime, to set the equivalent of android:layout_below programmatically?

What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible ...

javascript - accessing private member variables from prototype-defined functions

Is there any way to make "private" variables (those defined in the constructor), available to prototype-defined methods?TestClass = function(){ var privateField = "hello"; this.nonProtoHello ...

Making a div vertically scrollable using CSS

This gives a div that the user can scroll in both in horizontally and vertically. How do I change it so that the div is only ...

How can I use the HTML5 canvas element in IE?

I am trying to use the HTML5 canvas element to draw some arcs and circles - this works perfectly in FF but IE8 does not seem to support it.Now, there exist Javascript libraries which seem to make ...

Does JavaScript have the interface type (such as Java's 'interface')?

I'm learning how to make OOP with JavaScript. Does it have the interface concept (such as Java's interface)? So I would be able to create a listener...