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What is a 'Closure'?
...unction as a value. The moment we call this function can be remote in time from the moment the function has been defined (or created). In particular, its wrapping function is no longer running, and its parameters which has been on the call stack are no longer there :P This makes a problem, because t...
Return array in a function
...rk:
int fillarr(int* arr)
So in the same sense, what you want to return from your function is actually a pointer to the first element in the array:
int* fillarr(int arr[])
And you'll still be able to use it just like you would a normal array:
int main()
{
int y[10];
int *a = fillarr(y);
...
How do I turn off PHP Notices?
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@user I think the local value can come from ini_set directives or php_ini_flag settings in .htaccess files.
– Pekka
May 20 '10 at 11:53
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How to set TextView textStyle such as bold, italic
...ew.getTypeface(), Typeface.NORMAL); will not remove bold or italic styling from a TextView. You will need to use textView.setTypeface(null, Typeface.NORMAL); for that.
– Jarett Millard
Dec 3 '14 at 18:47
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Import package.* vs import package.SpecificType [duplicate]
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Minority view: in my code I tend to use tons of classes from a few packages along with a few odd classes here and there. I like to keep my imports list small so I can tell what is going on at a glance. To do this, I set the threshold at 4 classes. Above that, Eclipse will use * fo...
Read environment variables in Node.js
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When using Node.js, you can retrieve environment variables by key from the process.env object:
for example
var mode = process.env.NODE_ENV;
var apiKey = process.env.apiKey; // '42348901293989849243'
Here is the answer that will explain setting environment variables in node.js
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Flex-box: Align last row to grid
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@DanAndreasson There are two issues, it does not start from the left (like space-between), and also the space between the items of the last row is different than in previous row (simulating some fixed width items in "any-size" grid - relates to both)... codepen.io/anon/pen/gPoYZE...
Android accelerometer accuracy (Inertial navigation)
... API yet, so bear with me.
First of all, traditionally, to get navigation from accelerometers you would need a 6-axis accelerometer. You need accelerations in X, Y, and Z, but also rotations Xr, Yr, and Zr. Without the rotation data, you don't have enough data to establish a vector unless you assum...
How can I combine hashes in Perl?
...ashes, copy one hash (%hash1) to a new hash (%new_hash), then add the keys from the other hash (%hash2 to the new hash. Checking that the key already exists in %new_hash gives you a chance to decide what to do with the duplicates:
my %new_hash = %hash1; # make a copy; leave %hash1 alone
foreach my...
How to join two sets in one line without using “|”
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You could use or_ alias:
>>> from operator import or_
>>> from functools import reduce # python3 required
>>> reduce(or_, [{1, 2, 3, 4}, {3, 4, 5, 6}])
set([1, 2, 3, 4, 5, 6])
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