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Why can't strings be mutable in Java and .NET?
...are their internals.
[...]
Immutable objects make great building blocks for other objects, whether mutable or immutable.
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The only real disadvantage of immutable classes is that they require a separate object for each distinct value.
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What is the best way to detect a mobile device?
...esides hiding the container element, I also do this inside the jQuery code block (above):
if(!is_mobile) {
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect...
Is functional GUI programming possible? [closed]
...t wrap imperative GUI toolkits (such as GTK+ or wxWidgets) and to use "do" blocks to simulate an imperative style
That's not really the "Haskell approach" -- that's just how you bind to imperative GUI toolkits most directly -- via an imperative interface. Haskell just happens to have fairly promin...
Determine if Android app is being used for the first time
...the version number was never being recalculated in the first checkAppStart block. so I decided to share my updated code and see if anyone has suggestions about it
– Will
Dec 11 '14 at 1:47
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Why use strict and warnings?
... means either declaring them with my so they are restricted to the current block, or referring to them with their fully qualified name (for ex: $MAIN::variablename).
So, a compile-time error is triggered if you attempt to access a variable that hasn't met at least one of the following criteria:
P...
How can I use Google's Roboto font on a website?
...s @Nateowami mentioned, you're relying on Google's servers (which might be blocked in certain countries), it's bad for privacy, and performance could actually be better if you host your fonts on a CDN yourself. It's more work but that's your job, isn't it?
– Robin Métral
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What is the purpose of the '@' symbol in CSS?
... size of the screen, using a smaller image on a smaller screen. The first block would address screens up to width 1440px; the second would address screens larger than 1440px.
This comes in handy with things like tabs that float drop or scroll on smaller screens; you can often drop the font size ...
Best way to replace multiple characters in a string?
... how is '\#' valid? shouldn't it be r'\#' or '\\#'? Could be a code block formatting issue perhaps.
– parity3
May 10 '19 at 20:32
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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
...built an entire library class once with everything surrounded by try catch blocks once and was appalled to see the debug output which contained a seperate line for every single one of over 600 exceptions!
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Get exit code of a background process
... <n> waits until the process with PID <n> is complete (it will block until the process completes, so you might not want to call this until you are sure the process is done), and then returns the exit code of the completed process.
2, 3: ps or ps | grep " $! " can tell you whether the pro...