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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...cript.
The basic idea was simple JavaScript wanted to allow both of these forms:
if (u)
v;
if (x) {
y;
z;
}
To do so, two interpretations were made of the opening brace: 1. it is not required and 2. it can appear anywhere.
This was a wrong move. Real code doesn't have an opening br...
List files recursively in Linux CLI with path relative to the current directory
... that by "sinning" with the parsing of ls, though, which is considered bad form by the GNU and Ghostscript communities.
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Bigger Glyphicons
... solved.
<div class="input-group">
<input type="text" class="form-control" id="pesquisarinbox" placeholder="Pesquisar na Caixa de Entrada">
<div class="input-group-btn">
<button class="btn btn-default" type="button">
<span class="glyphicon glyp...
Django dynamic model fields
...define their own data fields (via the admin) to collect additional data in forms and report on the data. The latter bit makes JSONField not a great option, so instead I have the following solution:
...
Does the Java &= operator apply & or &&?
...Compound Assignment Operators.
A compound assignment expression of the form E1 op= E2 is equivalent to E1 = (T)((E1) op (E2)), where T is the type of E1, except that E1 is evaluated only once.
So a &= b; is equivalent to a = a & b;.
(In some usages, the type-casting makes a difference...
How to concatenate strings in twig
...e argument, with filters on the variable and the function token itself: {{ form_open('admin/files/?path='~file_path|urlencode)|raw }} No need for an extra variable.
– Wesley Murch
Mar 9 '12 at 6:28
...
Difference between Covariance & Contra-variance
...orresponding type in the second set is IEnumerable<T>. Or, in short form, the mapping is T → IE<T>. Notice that this is a "thin arrow".
With me so far?
Now let's consider a relation. There is an assignment compatibility relationship between pairs of types in the first set. A value o...
How to show disable HTML select option in by default?
...
we can disable using this technique.
<select class="form-control" name="option_select">
<option selected="true" disabled="disabled">Select option </option>
<option value="Option A">Option A</option>
<option value="Option B">Option B</o...
Git and Mercurial - Compare and Contrast
...sions (plugins) and established API; Git has scriptability and established formats.
There are a few things that differ Mercurial from Git, but there are other things that make them similar. Both projects borrow ideas from each other. For example hg bisect command in Mercurial (formerly bisect ex...
Use Fieldset Legend with bootstrap
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