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Setting the selected value on a Django forms.ChoiceField
... tuples represent (value, label) pairs for the options and you want to specify the initial value - so the '3' refers to the first item.
– Tom
Oct 29 '17 at 10:19
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How can I run a program from a batch file without leaving the console open after the program starts?
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Note that this will do not nice things if you are using the console interactively instead of just double-clicking on a batch file. Generally there is little to no need to ever put exit into a batch file.
– Joey
Apr 19 '11 at ...
What is duck typing?
...you don't need a type in order to invoke an existing method on an object - if a method is defined on it, you can invoke it.
The name comes from the phrase "If it looks like a duck and quacks like a duck, it's a duck".
Wikipedia has much more information.
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Rails check if yield :area is defined in content_for
...nt_for_whatever is deprecated.
Use content_for? instead, like this:
<% if content_for?(:whatever) %>
<div><%= yield(:whatever) %></div>
<% end %>
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How to compare two colors for similarity/difference
...hat I don't know how to do that manually step by step. So it is even more difficult to think of a program.
19 Answers
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How do I group Windows Form radio buttons?
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@UweB what if I cant add group boxes and panels due to any problem let say I don't have much space on my form. Then?
– Muhammad Saqib
Jan 3 '15 at 10:29
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Hide options in a select list using jQuery
... "]").hide();
Note that this will probably break in various hideous ways if title contains jQuery selector metacharacters.
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nodejs get file name from absolute path?
If there any API could retrieve file name from an absolute file path?
7 Answers
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How can I force users to access my page over HTTPS instead of HTTP?
...e). How do I do this without making the whole directory require HTTPS? Or, if you submit a form to an HTTPS page from an HTTP page, does it send it by HTTPS instead of HTTP?
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How to add elements of a Java8 stream into an existing List
...nswer is no, at least, not in general, you shouldn't use a Collector to modify an existing collection.
The reason is that collectors are designed to support parallelism, even over collections that aren't thread-safe. The way they do this is to have each thread operate independently on its own colle...