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How to disable/enable select field using jQuery?
..."></script>
<script>
var update_pizza = function () {
if ($("#pizza").is(":checked")) {
$('#pizza_kind').prop('disabled', false);
}
else {
$('#pizza_kind').prop('disabled', 'disabled');
}
};
$(update_pizza);
$("#pizza").change(update_pizza);
<...
What is string_view?
...at I can think of is that such "referential view" classes have completely different ownership semantics from the rest of the standard library. Basically, everything else in the standard library is unconditionally safe and correct (if it compiles, it's correct). With reference classes like this, that...
How to request a random row in SQL?
...ue LIMIT 1
This works in logarithmic time, regardless of the table size, if num_value is indexed. One caveat: this assumes that num_value is equally distributed in the range 0..MAX(num_value). If your dataset strongly deviates from this assumption, you will get skewed results (some rows will appea...
What is the use of having destructor as private?
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Basically, any time you want some other class to be responsible for the life cycle of your class' objects, or you have reason to prevent the destruction of an object, you can make the destructor private.
For instance, if you're doing some sort of reference counting thing, you can have the object ...
SQL Add foreign key to existing column
If I am using the following SQL command in SQL Server 2008 to update a table with a foreign key constraint:
6 Answers
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How can I delete multiple lines in vi?
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I find this easier
Go VISUAL mode Shift+v
Select lines
d to delete
https://superuser.com/questions/170795/how-can-i-select-and-delete-lines-of-text-in-vi
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How to get the request parameters in Symfony 2?
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It is different from what PHP uses, but it actually makes more sense. $_GET data is data from the query string (no GET request needed at all) and $_POST data is data from the request body (does not have to be a POST request either, ...
Python Mocking a function from an imported module
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this gets to my problem. get_user_name is in a different module than test_method. Is there a way to mock something in a sub_module? I fixed it in an ugly way below.
– nsfyn55
Apr 21 '13 at 19:11
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RegEx - Match Numbers of Variable Length
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You can specify how many times you want the previous item to match by using {min,max}.
{[0-9]{1,3}:[0-9]{1,3}}
Also, you can use \d for digits instead of [0-9] for most regex flavors:
{\d{1,3}:\d{1,3}}
You may also want to consider...
change cursor to finger pointer
...ke it's necessary to have both onmouseover="" AND style=cursor: pointer;". If you just have the style tag, the pointer pointer cursor will disappear/default to the standard pointer after one click interaction. Good post Scott, thank you.
– Nubtacular
Jun 4 '15 ...