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When to use self over $this?
In PHP 5, what is the difference between using self and $this ?
23 Answers
23
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Environment variable substitution in sed
If I run these commands from a script:
10 Answers
10
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pandas: How do I split text in a column into multiple rows?
I'm working with a large csv file and the next to last column has a string of text that I want to split by a specific delimiter. I was wondering if there is a simple way to do this using pandas or python?
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Why is Go so slow (compared to Java)?
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The 6g and 8g compilers are not particularly optimising, so the code they produce isn't particularly fast.
They're designed to run fast themselves and produce code that's OK (there is a bit of optimisation). gccgo uses GCC's existi...
fatal: git-write-tree: error building trees
... Valid answer, but would be nice to have an explanation for what happened and why this was necessary.
– mmigdol
Jun 20 '14 at 18:18
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How do you split a list into evenly sized chunks?
I have a list of arbitrary length, and I need to split it up into equal size chunks and operate on it. There are some obvious ways to do this, like keeping a counter and two lists, and when the second list fills up, add it to the first list and empty the second list for the next round of data, but t...
Javascript “Not a Constructor” Exception while creating objects
...Project is not a constructor
Variable declarations using var are hoisted and thus always evaluated before the rest of the code. So, this can also be causing issues:
function Project(){}
function localTest() {
new Project(1,2,3); // `Project` points to the local variable,
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Java Name Hiding: The Hard Way
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You can cast a null to the type and then invoke the method on that (which will work, since the target object isn't involved in invocation of static methods).
((net.foo.X) null).doSomething();
This has the benefits of
being side-effect free (a problem w...
Linq Query keeps throwing “Unable to create a constant value of type System.Object…”, Why?
... Can you please explain the difference between "t.CustID == custIdToQuery" and "t.CustID.Equals(custIdToQuery)". thanks in advance
– Neel
Jan 4 '11 at 10:20
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What exactly does an #if 0 … #endif block do?
...not get executed, it doesn't even get compiled.
#if is a preprocessor command, which gets evaluated before the actual compilation step. The code inside that block doesn't appear in the compiled binary.
It's often used for temporarily removing segments of code with the intention of turning them bac...