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Store a closure as a variable in Swift
...e realized with an optional:
var completionHandler: ((Float)->Void)?
Now the property is automatically initialized to nil ("no value").
In Swift you would use optional binding to check of a the
completion handler has a value
if let handler = completionHandler {
handler(result)
}
or opti...
INSERT IF NOT EXISTS ELSE UPDATE?
...
It's valid if you know all the new value for all the fields. If the user update only, say, the Level, this approach cannot be followed.
– rds
Nov 14 '12 at 15:07
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How to delete a whole folder and content?
...Deleting a folder and recreating the folder resulting in creation of an unknown file with same name of folder mentioned.And if i'm trying to access that file it is throwing exception like Resource or device busy.I also checked the Properties of file where i found MD5 Signature:Operation Failure
...
How to determine programmatically whether a particular process is 32-bit or 64-bit
...}
else if (IntPtr.Size == 8)
{
// 64-bit
}
else
{
// The future is now!
}
To find out if OTHER processes are running in the 64-bit emulator (WOW64), use this code:
namespace Is64Bit
{
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Runtime...
Options for embedding Chromium instead of IE WebBrowser control with WPF/C#
...s the only option that allows you to embed the latest version of Chromium. Now that Per Lundberg is actively working on porting CEF 3 to CefSharp, this is the best option for the future. There is also Xilium.CefGlue, but this one provides a low level API for CEF, it binds to the C API of CEF. CefSha...
How to do SQL Like % in Linq?
...
.NET core now has EF.Functions.Like
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Why are my CSS3 media queries not working?
...meta content="width=device-width, initial-scale=1" name="viewport" />
Now it seems to work in both Android (2.2) and iPhone all right...
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Initial bytes incorrect after Java AES/CBC decryption
...utputs bytes, so does decryption (case in point : the Cipher object does). Now, one particular use case may be to have encrypted bytes coming from a String, or be sent as a String (base64 MIME attachment for a Mail...), but that is an issue of encoding bytes, for which there exists hundreds of solut...
getResourceAsStream returns null
...n is this article from InfoWorld. I'll summarize here, but if you want to know more you should check out the article.
Methods
ClassLoader.getResourceAsStream().
Format: "/"-separated names; no leading "/" (all names are absolute).
Example: this.getClass().getClassLoader().getResourceAsStream("some...
Split string on the first white space occurrence
...
Late to the game, I know but there seems to be a very simple way to do this:
const str = "72 tocirah sneab";
const arr = str.split(/ (.*)/);
console.log(arr);
This will leave arr[0] with "72" and arr[1] with "tocirah sneab". Note th...