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What is memoization and how can I use it in Python?
... no idea what memoization is and how to use it. Also, may I have a simplified example?
13 Answers
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MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
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@frumbert before you ditch it, try to set the PHP version to be dynamic for each host. That seems to of fixed the issue for me.
– IEnumerator
Jan 13 '15 at 21:42
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Pure virtual function with implementation
...e type can still define an implementation. A derived class can explicitly call the base class implementation (if access permissions allow it) by using a fully-scoped name (by calling A::f() in your example - if A::f() were public or protected). Something like:
class B : public A {
virtual voi...
Get value of dynamically chosen class constant in PHP
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$id = constant("ThingIDs::$thing");
http://php.net/manual/en/function.constant.php
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Run an OLS regression with Pandas Data Frame
I have a pandas data frame and I would like to able to predict the values of column A from the values in columns B and C. Here is a toy example:
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Can git operate in “silent mode”?
..."$@" </dev/null >$stdout 2>$stderr; then
cat $stderr >&2
rm -f $stdout $stderr
exit 1
fi
rm -f $stdout $stderr
}
This will suppress stdout and stderr, unless the git command fails. It's not pretty; in fact the stdout file is ignored and it should ju...
How to load images dynamically (or lazily) when users scrolls them into view
...ssary for the data pull.
$.ajax({
type: "POST",
url: "myAjaxFile.php",
data: {"resultNum": 30, "numPerPage": 50, "query": "interesting%20icons" },
success: myInfiniteLoadFunction(msg)
});
The ajax returns some (most-likely JSON formatted) content, and passes them into the loadnig ...
Can I grep only the first n lines of a file?
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Or use awk for a single process without |:
awk '/your_regexp/ && NR < 11' INPUTFILE
On each line, if your_regexp matches, and the number of records (lines) is less than 11, it executes the default action (which is printing the input line).
Or use sed:
sed -n '/your_regexp/...
How to get innerHTML of DOMNode?
What function do you use to get innerHTML of a given DOMNode in the PHP DOM implementation? Can someone give reliable solution?
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I want to remove double quotes from a String
... more maintainable and just better to do this:
if (str.charAt(0) === '"' && str.charAt(str.length -1) === '"')
{
console.log(str.substr(1,str.length -2));
}
Here, I'm checking if the first and last char in the string are double quotes. If they are, I'm using substr to cut off those fi...