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Difference between Repository and Service Layer?
... bool Delete(int id);
T Get(int id);
bool SaveChanges();
}
and call Get(id). Repository layer exposes basic CRUD operations.
Service layer exposes business logic, which uses repository. Example service could look like:
public interface IUserService
{
User GetByUserName(string userNa...
Why does setTimeout() “break” for large millisecond delay values?
...s due to setTimeout using a 32 bit int to store the delay so the max value allowed would be
2147483647
if you try
2147483648
you get your problem occurring.
I can only presume this is causing some form of internal exception in the JS Engine and causing the function to fire immediately rathe...
How can i tell if an object has a key value observer attached
...
Put a try catch around your removeObserver call
@try{
[someObject removeObserver:someObserver forKeyPath:somePath];
}@catch(id anException){
//do nothing, obviously it wasn't attached because an exception was thrown
}
...
Batch file to delete files older than N days
I am looking for a way to delete all files older than 7 days in a batch file. I've searched around the web, and found some examples with hundreds of lines of code, and others that required installing extra command line utilities to accomplish the task.
...
How to search a Git repository by commit message?
...
To search the commit log (across all branches) for the given text:
git log --all --grep='Build 0051'
To search the actual content of commits through a repo's history, use:
git grep 'Build 0051' $(git rev-list --all)
to show all instances of the given t...
How do I create a MongoDB dump of my database?
...ump:
$ ./mongodump --host prod.example.com
connected to: prod.example.com
all dbs
DATABASE: log to dump/log
log.errors to dump/log/errors.bson
713 objects
log.analytics to dump/log/analytics.bson
234810 objects
DATABASE: blog to dump/blog
...
How do you default a new class to public when creating it in Visual Studio?
...1033.
Visual Studio 2010 (10.0) and below: There is a zip file in there called Class.zip. Unpack this, edit the file to put in your public keyword then re-pack it (make sure you backup the original).
After this, make sure VS rebuilds it's cache (which is just the zipfiles unzipped into directorie...
When is the @JsonProperty property used and what is it used for?
...
As you know, this is all about serialize and desalinize an object. Suppose there is an object:
public class Parameter {
public String _name;
public String _value;
}
The serialization of this object is:
{
"_name": "...",
"_value": ".....
How to find if a native DLL file is compiled as x64 or x86?
...
You can use DUMPBIN too. Use the /headers or /all flag and its the first file header listed.
dumpbin /headers cv210.dll
64-bit
Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file cv210.dll
PE ...
Can I use require(“path”).join to safely concatenate urls?
... takes any number. So depending on what you're doing you may need to nest calls, eg.. url.resolve(url.resolve(SERVER_URL, pagePath), queryString)
– Molomby
Aug 23 '19 at 0:31
...