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How do you append to a file in Python?
... "a"), that a indicates the appending the file, that means allow to insert extra data to the existing file.
You can just use this following lines to append the text in your file
def FileSave(filename,content):
with open(filename, "a") as myfile:
myfile.write(content)
FileSave("test.tx...
What is a good pattern for using a Global Mutex in C#?
...g System.Security.Principal; //SecurityIdentifier
static void Main(string[] args)
{
// get application GUID as defined in AssemblyInfo.cs
string appGuid =
((GuidAttribute)Assembly.GetExecutingAssembly().
GetCustomAttributes(typeof(GuidAttribute), false).
...
No IUserTokenProvider is registered
... UserManager.UserTokenProvider = new DataProtectorTokenProvider<User, string>(provider.Create("UserToken"))
as IUserTokenProvider<User, string>;
My problem with this code solved.
Good luck friends.
s...
Making the iPhone vibrate
...esPlayAlertSound(kSystemSoundID_Vibrate)
Instead of having to go thru the extra cast step
(Props to @Dov)
Original Answer (Swift 1.x)
And, here's how you do it on Swift (in case you ran into the same trouble as I did)
Link against AudioToolbox.framework (Go to your project, select your target, buil...
Adding a new entry to the PATH variable in ZSH
...hen when it runs .zshrc (or .bashrc or whatever), that's what lets you add extra things to that path.
– Linuxios
Nov 18 '19 at 0:04
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show 6...
How to break nested loops in JavaScript? [duplicate]
... loops to separate functions, it will run marginally slower because of the extra function calls.
– Tim Down
Oct 14 '09 at 10:39
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show 2 mor...
What is the “double tilde” (~~) operator in JavaScript? [duplicate]
... browsers, and not faster at all in some browsers. If you really need that extra bit of performance, you would need to write different optimised code for each browser.
See: tilde vs floor
share
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im...
Quickly find whether a value is present in a C array?
... In this case we are preventing an attacker from guessing the length of a string. Usually the attacker will take several million samples of a function invocation to perform a timing attack.
– OregonTrail
Sep 5 '14 at 17:19
...
How can I hash a password in Java?
...der enc = Base64.getEncoder();
System.out.printf("salt: %s%n", enc.encodeToString(salt));
System.out.printf("hash: %s%n", enc.encodeToString(hash));
Here's a utility class that you can use for PBKDF2 password authentication:
import java.security.NoSuchAlgorithmException;
import java.security.Secu...
include antiforgerytoken in ajax post ASP.NET MVC
... [HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Index(string someValue)
{
return Json(new { someValue = someValue });
}
}
View:
@using (Html.BeginForm(null, null, FormMethod.Post, new { id = "__AjaxAntiForgeryForm" }))
{
@Html.AntiForgeryToken()
}
<div...