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How do you write multiline strings in Go?
...t as well? Let the string be 3x a 6 char sequence: 6 + 2*6 +3*6 = 36 chars allocated when optimal would be 18 (since strings are immutable, every time you add two string a new string is created with length of the two strings concatenated).
– N0thing
Jun 2 '16 a...
What does the slash mean in help() output?
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Choosing the / token, because "it's the inverse operation of *" shows, that Python is just a little bit crazy. It's a kind of synesthesia.
– Tomasz Gandor
Nov 30 '19 at 6:28
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How to prevent http file caching in Apache httpd (MAMP)
...g of javascript files, which is done on your browser, you can use a random token at the end of the js url, something like ?rd=45642111, so the url looks like:
<script type="texte/javascript" src="my/url/myjs.js?rd=4221159546">
If this url on the page is generated by a PHP file you can simpl...
Dynamically changing font size of UILabel
...loat)i];
NSAttributedString *attributedText = [[NSAttributedString alloc] initWithString:text attributes:@{NSFontAttributeName: font}];
CGRect rectSize = [attributedText boundingRectWithSize:CGSizeMake(self.frame.size.width, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin...
The easiest way to transform collection to array?
...bly because it's an intrinsic.
It can avoid zero-filling the freshly allocated array because it knows the
entire array contents will be overwritten. This is true regardless of what
the public API looks like.
The implementation of the API within the JDK reads:
default <T> T[] to...
Iterating each character in a string using Python
...thon 2.x, range() creates a list, so for a very long length you may end up allocating a very large block of memory. At the very least use xrange() in those cases. Also, repeated indexing of the same string is much slower than iterating directly over the string. If you need the index, use enumerate()...
File to byte[] in Java
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Basically you have to read it in memory. Open the file, allocate the array, and read the contents from the file into the array.
The simplest way is something similar to this:
public byte[] read(File file) throws IOException, FileTooBigException {
if (file.length() > MAX...
Python strptime() and timezones?
...thon2.7/site-packages/dateutil/parser.py", line 310, in parse res, skipped_tokens = self._parse(timestr, **kwargs) TypeError: 'NoneType' object is not iterable
– wanghq
Apr 29 '14 at 0:16
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What does T&& (double ampersand) mean in C++11?
...just be destroyed; why not make use of the resources the temporary already allocated? In C++03, there's no way to prevent the copy as we cannot determine we were passed a temporary. In C++11, we can overload a move constructor:
foo(foo&& other)
{
this->length = other.length;
this...
Logical operator in a handlebars.js {{#if}} conditional
...to pass the operator as a string or else the compiler will error out while tokenizing your template. {{#ifCond true '==' false}}
– Joe Holloway
Jul 11 '13 at 20:11
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