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What does a double * (splat) operator do
...lues)
options = values.extract_options!
# ...
end
This method can be called like this: cycle("red", "green", "blue", name: "colors").
This is quite a common pattern: You accept a list of arguments and the last one is an options hash, which can be extract - for example - using ActiveSupport's ...
How do I get the name of a Ruby class?
...
You want to call .name on the object's class:
result.class.name
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HttpServletRequest - how to obtain the referring URL?
...inking to you? You want to capture the HTTP Referrer, which you can do by calling:
request.getHeader("referer");
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How can I expand and collapse a using javascript?
... </ul>
</div>
</div>
With this CSS: (This is to hide the .content stuff when the page loads.
.container .content {
display: none;
padding : 5px;
}
Then, using jQuery, write a click event for the header.
$(".header").click(function () {
$header = $(this);
...
How to access array elements in a Django template?
...ictionary lookup
foo.bar # attribute lookup
foo.bar() # method call
foo[bar] # list-index lookup
It tries them in this order until it finds a match. So foo.3 will get you your list index because your object isn't a dict with 3 as a key, doesn't have an attribute named 3, and doe...
What is the best way to exit a function (which has no return value) in python before the function en
Let's assume an iteration in which we call a function without a return value. The way I think my program should behave is explained in this pseudocode:
...
What is string_view?
... The string_view in question is one such proposal; there were earlier ones called string_ref and array_ref, too.
The idea is always to store a pair of pointer-to-first-element and size of some existing data array or string.
Such a view-handle class could be passed around cheaply by value and would...
Counting the number of option tags in a select tag in jQuery
...
The W3C solution:
var len = document.getElementById("input1").length;
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Why do I need 'b' to encode a string with Base64?
...dely-used encodings). That is what is happening when you take a string and call the .encode() method on it: Python is interpreting the string in utf-8 (the default encoding) and providing you the array of bytes that it corresponds to.
Base-64 Encoding in Python 3
Originally the question title aske...
How to serialize an object to XML without getting xmlns=“…”?
...y for me to serialize an object in .NET without the XML Namespaces automatically serializing also? It seems that by default .NET believes the XSI and XSD namespaces should be included, but I don't want them there.
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