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ASP.NET MVC How to convert ModelState errors to json
... select item.Value.Errors[0].ErrorMessage).ToList();
EDIT: You can extract multiple errors into separate list items by adding a from clause, like this:
var errorList = (from item in ModelState.Values
from error in item.Errors
select error.ErrorMessage).ToList();
Or:
var er...
How to get browser width using JavaScript code?
...ce, the relevant portion is found on line 37 of dimensions.js. Here it is extracted and modified to work standalone:
function getWidth() {
return Math.max(
document.body.scrollWidth,
document.documentElement.scrollWidth,
document.body.offsetWidth,
document.documentElement...
Removing duplicate rows in Notepad++
...
Notepad++ with the TextFX plugin can do this, provided you wanted to sort by line, and remove the duplicate lines at the same time.
To install the TextFX in the latest release of Notepad++ you need to download it from here: https://sourceforge.ne...
How do I use floating-point division in bash?
...2;$IMG_WIDTH/$IMG2_WIDTH") without $(( )) (double parentheses) ; which is expanded by the bash before executing command
– Nahuel Fouilleul
Oct 4 '12 at 7:32
...
Getting the index of the returned max or min item using max()/min() on a list
I'm using Python's max and min functions on lists for a minimax algorithm, and I need the index of the value returned by max() or min() . In other words, I need to know which move produced the max (at a first player's turn) or min (second player) value.
...
Installing vim with ruby support (+ruby)
...
Some package provides vim-ruby on Ubuntu, for example vim-nox.
simply:
sudo apt-get install vim-nox;
will get you vim with ruby, as well as compiled in "support for scripting with Perl, Python, Ruby, and TCL but no GUI."
sudo apt-get install vim-rails
will install ...
How do I pass a variable by reference?
...n't even mutate the object.
To make it even more clear, let's have some examples.
List - a mutable type
Let's try to modify the list that was passed to a method:
def try_to_change_list_contents(the_list):
print('got', the_list)
the_list.append('four')
print('changed to', the_list)
...
Inserting a Python datetime.datetime object into MySQL
...tetime.datetime() object into this column. What should I be using in the execute statement?
7 Answers
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What is the function of the push / pop instructions used on registers in x86 assembly?
... on top of the stack into a register. Those are basic instructions:
push 0xdeadbeef ; push a value to the stack
pop eax ; eax is now 0xdeadbeef
; swap contents of registers
push eax
mov eax, ebx
pop ebx
...
Check if a variable is of function type
... answered Sep 9 '11 at 2:24
Alex GrandeAlex Grande
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...