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Using JQuery to check if no radio button in a group has been checked
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Both the answer by Dominic Rodger and Jacobo Hernández work well. I personally try to never use the leading NOT (!) at the beginning of the line. Years later it gets hard to debug when you overlook that and have the logic backwards... is(":...
Adding options to a using jQuery?
...n('option text', 'value'); o.innerHTML = 'option text'; document.getElementById('selectList').appendChild(o);
– Aust
Nov 15 '13 at 21:33
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Get the key corresponding to the minimum value within a dictionary
...; d.items()
[(320, 1), (321, 0), (322, 3)]
>>> # find the minimum by comparing the second element of each tuple
>>> min(d.items(), key=lambda x: x[1])
(321, 0)
Using d.iteritems() will be more efficient for larger dictionaries, however.
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NPM clean modules
...very strange that such a basic functionality, that is actually recommended by npm, requires a hack to achieve. What does everyone else do? Just ignore the recommendation and use npm install?
– VitalyB
Apr 20 '14 at 8:47
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C# getting its own class name
...dvantages: 1. Static context. 2. The type portion will not be re-evaluated by the CLR each time - it will be written to the MSIL. 3. It protects you from someone declaring a new "GetType()".
– Gilbert
Apr 16 '14 at 19:48
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how to reset
... an empty string. So in "pure" JavaScript it would be:
document.getElementById("uploadCaptureInputFile").value = "";
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MySQL: selecting rows where a column is null
...ull_values.asp:
1) NULL values represent missing unknown data.
2) By default, a table column can hold NULL values.
3) NULL values are treated differently from other values
4) It is not possible to compare NULL and 0; they are not equivalent.
5) It is not possible to test for ...
Convert a matrix to a 1 dimensional array
...on the matrix. You might want to transpose the matrix first if you want it by rows or columns.
> m=matrix(1:12,3,4)
> m
[,1] [,2] [,3] [,4]
[1,] 1 4 7 10
[2,] 2 5 8 11
[3,] 3 6 9 12
> as.vector(m)
[1] 1 2 3 4 5 6 7 8 9 10 11 12
> as.vecto...
Center HTML Input Text Field Placeholder
...-placeholder-css.
But I don't believe that text-align will be interpreted by the browsers. At least on Chrome, this attribute is ignored. But you can always change other things, like color, font-size, font-family etc. I suggest you rethinking your design whether possible to remove this center behav...
Convert stdClass object to array in PHP
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While converting a STD class object to array.Cast the object to array by using array function of php.
Try out with following code snippet.
/*** cast the object ***/
foreach($stdArray as $key => $value)
{
$stdArray[$key] = (array) $value;
}
/*** show the results ***/
print_r( ...