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Why do we use Base64?
...e used for different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64, you start with a sequence of bytes and convert it to a text string.
To understand why Base64 was necessary in the first place we need...
Any idea why I need to cast an integer literal to (int) here?
...tract 128 from (Integer) instead of casting -128 to Integer. Add () to fix it
Integer i3 = (Integer) -128; // doesn't compile
Integer i3 = (Integer) (-128); // compiles
According to BoltClock in the comments the cast to int works as intended, because it is a reserved word and therefore can't be ...
Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”
...
As a general rule (i.e. in vanilla kernels), fork/clone failures with ENOMEM occur specifically because of either an honest to God out-of-memory condition (dup_mm, dup_task_struct, alloc_pid, mpol_dup, mm_init etc. croak), or because security_vm_enough_memory_mm failed you while enforcing t...
How do I create a new Swift project without using Storyboards?
...vigationController?
Swift classes require non-optional properties to be initialized during the instantiation:
Classes and structures must set all of their stored properties to an appropriate initial value by the time an instance of that class or structure is created. Stored properties cannot be le...
What is the yield keyword used for in C#?
...
The yield keyword actually does quite a lot here.
The function returns an object that implements the IEnumerable<object> interface. If a calling function starts foreaching over this object, the function is called again until it "yields". This is syntac...
LINQ Single vs First
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If you're expecting a Single record, it's always good to be explicit in your code.
I know others have written why you use one or the other, but I thought I'd illustrate why you should NOT use one, when you mean the other.
Note: In my code, I will typically use F...
Why are regular expressions so controversial? [closed]
...ssions because they're slow, but rather because they're hard to read and write, as well as tricky to get right. While there are some situations where regular expressions provide an effective, compact solution to the problem, they are sometimes shoehorned into situations where it's better to use an e...
PhoneGap: Detect if running on desktop browser
...follow
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edited May 23 '17 at 12:18
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answered May 12 '12 at ...
How to run Gulp tasks sequentially one after the other
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It's not an official release yet, but the coming up Gulp 4.0 lets you easily do synchronous tasks with gulp.series. You can simply do it like this:
gulp.task('develop', gulp.series('clean', 'coffee'))
I found a good blog p...
Chrome, Javascript, window.open in new tab
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You can't directly control this, because it's an option controlled by Internet Explorer users.
Opening pages using Window.open with a different window name will open in a new browser window like a popup, OR open in a new tab, if the user configured the browser to d...