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If strings are immutable in .NET, then why does Substring take O(n) time?
...t a win; all you've done is made your garbage collector get slower because now it has to worry about handling interior pointers.
If the substring operations people typically did on strings were completely different, then it would make sense to go with a persistent approach. If people typically had...
Convert blob to base64
...res => {
// do what you wanna do
console.log(res); // res is base64 now
});
I write this helper function for my problem on React Native project, I wanted to download an image and then store it as a cached image:
fetch(imageAddressAsStringValue)
.then(res => res.blob())
.then(blobT...
Are custom elements valid HTML5?
...mitted in HTML5. This confirms Alochi's circular argument observation. 2) Nowhere does the spec say that custom elements are not permitted.
– d13
Mar 24 '12 at 9:59
...
What's the difference between using CGFloat and float?
... to make your app 64-bit clean and try running it as such, since most Macs now have 64-bit CPUs and Snow Leopard is fully 64-bit, including the kernel and user applications. Apple's 64-bit Transition Guide for Cocoa is a useful resource.
...
Adjusting and image Size to fit a div (bootstrap)
...
it's img-fluid now, not img-responsive
– wordsforthewise
Aug 18 '17 at 4:23
...
jQuery get input value after keypress
...
Works, but with jquery 2.x out this is out of date now as the answer below using the on and input is the best way to do it now.
– Piotr Kula
Jul 16 '14 at 16:14
...
How can I set up an editor to work with Git on Windows?
...eptember 2015 (6 years later)
The last release of git-for-Windows (2.5.3) now includes:
By configuring git config core.editor notepad, users can now use notepad.exe as their default editor.
Configuring git config format.commitMessageColumns 72 will be picked up by the notepad wrapper and line...
JPA OneToMany not deleting child
...e JPA doesn't cater for it.
In part this is because JPA doesn't actually know if it should delete something removed from the collection. In object modeling terms, this is the difference between composition and "aggregation*.
In composition, the child entity has no existence without the parent. A c...
How to duplicate virtualenv
...ext editor, you'll see something like:
Django==1.3
Fabric==1.0.1
etc...
Now, edit the line that says Django==x.x to say Django==1.3 (or whatever version you want to install in your new virtualenv).
Lastly, activate your new virtualenv, and run:
pip install -r requirements.txt
And pip will aut...
Unknown file type MIME?
...
You can use application/octet-stream for unknown types.
RFC 2046 states in section 4.5.1:
The "octet-stream" subtype is used to
indicate that a body contains
arbitrary binary data.
sh...