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In where shall I use isset() and !empty()
...is not an effective way to validate text inputs and text boxes from a HTML form.
17 Answers
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Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC
...pproach that both Ruby on
Rails and MonoRail use.
When you submit a form with a checkbox, the value is only posted if
the checkbox is checked. So, if you leave the checkbox unchecked then
nothing will be sent to the server when in many situations you would
want false to be sent instead....
Passing an array by reference
...yArray)
^ Pass an array. Array decays to a pointer. Thus you lose size information.
void Func(int (*myFunc)(double))
^ Pass a function pointer. The function returns an int and takes a double. The parameter name is myFunc.
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DropDownList in MVC 4 with Razor
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You have to be careful as none of the posted solutions perform any kind of server-side validation. Here's an elegant solution that performs both client-side and server-side validation to ensure valid data is posted to the model. stackoverflow.com/a/56185910/3960200
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Running a Python script from PHP
...t a quick reminder for those trying to use shell_exec on a
unix-type platform and can't seem to get it to work. PHP executes as
the web user on the system (generally www for Apache), so you need to
make sure that the web user has rights to whatever files or
directories that you are trying to...
Python add item to the tuple
...
#1 form
a = ('x', 'y')
b = a + ('z',)
print(b)
#2 form
a = ('x', 'y')
b = a + tuple('b')
print(b)
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What is difference between functional and imperative programming languages?
...a pure functional approach to problem solving. Functional programming is a form of declarative programming.
Advantages of Pure Functions:
The primary reason to implement functional transformations as pure functions is that pure functions are composable: that is, self-contained and stateless. These ...
What is the difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim?
... the names.
map is the "root" of all recursive mapping commands. The root form applies to "normal", "visual+select", and "operator-pending" modes. (I'm using the term "root" as in linguistics.)
noremap is the "root" of all non-recursive mapping commands. The root form applies to the same modes as ...
WPF User Control Parent
...u know why this is? The user control has a parent which is the containing form. How do I get a handle to this form?
– Peter Walke
Jun 5 '09 at 15:44
2
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Django template how to look up a dictionary value with a variable
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Since I can't comment, let me do this in the form of an answer:
to build on culebrón's answer or Yuji 'Tomita' Tomita's answer, the dictionary passed into the function is in the form of a string, so perhaps use ast.literal_eval to convert the string to a dictionary fir...