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Dynamically adding a form to a Django formset with Ajax
...My template:
<h3>My Services</h3>
{{ serviceFormset.management_form }}
{% for form in serviceFormset.forms %}
<div class='table'>
<table class='no_error'>
{{ form.as_table }}
</table>
</div>
{% endfor %}
<input type="button" value="Add ...
How to specify new GCC path for CMake
...
Do not overwrite CMAKE_C_COMPILER, but export CC (and CXX) before calling cmake:
export CC=/usr/local/bin/gcc
export CXX=/usr/local/bin/g++
cmake /path/to/your/project
make
The export only needs to be done once, the first time you configure the...
Mac zip compress without __MACOSX folder?
... built in zip compressor in Mac OSX, it results in an extra folder titled "__MACOSX" created in the extracted zip.
13 Answe...
How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...ange any values (as of pandas 0.15):
idx = pd.IndexSlice
df.loc[idx[:,mask_1],idx[mask_2,:]].fillna(value=0,inplace=True)
The "problem" is that the chaining breaks the fillna ability to update the original dataframe. I put "problem" in quotes because there are good reasons for the design decision...
Verifying that a string contains only letters in C#
...
Only letters, numbers and underscore:
Regex.IsMatch(input, @"^[a-zA-Z0-9_]+$");
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Is null reference possible?
...act of dereferencing, here's the link: open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1102
– Johannes Schaub - litb
Dec 6 '10 at 9:03
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How to easily resize/optimize an image size with iOS?
...r(portrait) on right side plz give me solution
– Nag_iphone
Oct 24 '11 at 11:17
1
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Swift - Convert to absolute value
...alue.magnitude) // prints: 5
#2. Get absolute value of an Int from abs(_:) method
Swift has a global numeric function called abs(_:) method. abs(_:) has the following declaration:
func abs<T>(_ x: T) -> T where T : Comparable, T : SignedNumeric
Returns the absolute value of the g...
Super-simple example of C# observer/observable with delegates
...Here's a simple example:
public class ObservableClass
{
private Int32 _Value;
public Int32 Value
{
get { return _Value; }
set
{
if (_Value != value)
{
_Value = value;
OnValueChanged();
}
...
Is there an alternative sleep function in C to milliseconds?
...s defined usleep(), so this is available on Linux:
int usleep(useconds_t usec);
DESCRIPTION
The usleep() function suspends execution of the calling thread for
(at least) usec microseconds. The sleep may be lengthened slightly by
any system activity or by the tim...