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Entity Framework .Remove() vs. .DeleteObject()
...s Deleted in the context. (It's EntityState is Deleted after that.) If you call SaveChanges afterwards EF sends a SQL DELETE statement to the database. If no referential constraints in the database are violated the entity will be deleted, otherwise an exception is thrown.
EntityCollection.Remove(chi...
Python: Bind an Unbound Method?
In Python, is there a way to bind an unbound method without calling it?
5 Answers
5
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inserting characters at the start and end of a string
...ng somewhere else in existing string, you may use selection method below.
Calling character on second position:
>>> s = "0123456789"
>>> s[2]
'2'
Calling range with start and end position:
>>> s[4:6]
'45'
Calling part of a string before that position:
>>> ...
React ignores 'for' attribute of the label element
...
The for attribute is called htmlFor for consistency with the DOM property API. If you're using the development build of React, you should have seen a warning in your console about this.
...
Node.js Best Practice Exception Handling
... // no error occured, continue on
console.log('4/0='+result)
}
For callback-based (ie. asynchronous) code, the first argument of the callback is err, if an error happens err is the error, if an error doesn't happen then err is null. Any other arguments follow the err argument:
var divide = ...
receiver type *** for instance message is a forward declaration
...
That basically means that you need to import the .h file containing the declaration of States.
However, there is a lot of other stuff wrong with your code.
You're -init'ing an object without +alloc'ing it. That won't work
You're de...
How can I get the length of text entered in a textbox using jQuery?
...he .val() method to get the string contained in the input textbox and then call the .length on that string.
$('input:text').val().length
However, be warned that if the selector matches multiple inputs, .val() will only return the value of the first textbox. You can also change the selector to get ...
Exception thrown in NSOrderedSet generated accessors
... before passing back to the NSManagedObject, which should if any reason be calling isEqualToOrderedSet to determine if the set needs to even change or be left as is.
– InitJason
Jan 19 '12 at 17:42
...
Git: How to rebase to a specific commit?
...t:
Find a previous branching point of the branch to be rebased (moved) - call it old parent. In the example above that's A
Find commit on top of which you want to move the branch to - call it new parent. In the exampe that's B
You need to be on your branch (the one you move):
Apply your rebase: g...
Getting value of public static final field/property of a class in Java via reflection
...et(null);
Exception handling is left as an exercise for the reader.
Basically you get the field like any other via reflection, but when you call the get method you pass in a null since there is no instance to act on.
This works for all static fields, regardless of their being final. If the field...