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When is .then(success, fail) considered an antipattern for promises?
...will return a promise that will be rejected in case the callback throws an error. This means, when your success logger fails, the error would be passed to the following .catch() callback, but not to the fail callback that goes alongside with success.
Here's a control flow diagram:
To express it...
Fully custom validation error message with Rails
Using Rails I'm trying to get an error message like "The song field can't be empty" on save. Doing the following:
17 Answer...
PHP Error handling: die() Vs trigger_error() Vs throw Exception
In regards to Error handling in PHP -- As far I know there are 3 styles:
2 Answers
2
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How to capture no file for fs.readFileSync()?
Within node.js readFile() shows how to capture an error, however there is no comment for the readFileSync() function regarding error handling. As such, if I try to use readFileSync() when there is no file, I get the error Error: ENOENT, no such file or directory .
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编译失败！ Error: Your build failed due to an error in the AAPT stage,...
...buildserver.BuildServer build
[java] INFO: Build error output: Error: Your build failed due to an error in the AAPT stage, not because of an error in your program.
[java]
[java] May 30, 2023 9:29:27 AM com.google.appinvent...
ASP.NET custom error page - Server.GetLastError() is null
I have a custom error page set up for my application:
10 Answers
10
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How can I properly handle 404 in ASP.NET MVC?
...from http://blogs.microsoft.co.il/blogs/shay/archive/2009/03/06/real-world-error-hadnling-in-asp-net-mvc-rc2.aspx and works in ASP.net MVC 1.0 as well
Here's how I handle http exceptions:
protected void Application_Error(object sender, EventArgs e)
{
Exception exception = Server.GetLastError()...
Best practice to return errors in ASP.NET Web API
I have concerns on the way that we returns errors to client.
11 Answers
11
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Delete specified file from document directory
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I checked your code. It's working for me. Check any error you are getting using the modified code below
- (void)removeImage:(NSString *)filename
{
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(N...
How to print a stack trace in Node.js?
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Any Error object has a stack member that traps the point at which it was constructed.
var stack = new Error().stack
console.log( stack )
or more simply:
console.trace("Here I am!")
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