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How to achieve code folding effects in Emacs?
...er way to skin the cat:
As it happens, you don’t need any package or extra configuration for
that. Just go to any source file, type
M-1 C-x $ and magic happens!
As usual, it’s white magic: C-x $ will bring your code back.
We can use Emacs’ help system to discover what’s going o...
Why do I want to avoid non-default constructors in fragments?
... parameter.
For example:
public static MyFragment newInstance(int title, String message) {
MyFragment fragment = new MyFragment();
Bundle bundle = new Bundle(2);
bundle.putInt(EXTRA_TITLE, title);
bundle.putString(EXTRA_MESSAGE, message);
fragment.setArguments(bundle);
retu...
How can I convert byte size into a human-readable format in Java?
...o human readable format | Programming.Guide
SI (1 k = 1,000)
public static String humanReadableByteCountSI(long bytes) {
if (-1000 < bytes && bytes < 1000) {
return bytes + " B";
}
CharacterIterator ci = new StringCharacterIterator("kMGTPE");
while (bytes <= ...
Flex-box: Align last row to grid
...
One technique would be inserting a number of extra elements (as many as the max number of elements you ever expect to have in a row) that are given zero height. Space is still divided, but superfluous rows collapse to nothing:
http://codepen.io/dalgard/pen/Dbnus
b...
How to parse/read a YAML file into a Python object? [duplicate]
...t form a path to a node in the representation graph. Paths elements can be string values, integers, or None. The kind of a node can be str, list, dict, or None.
#!/usr/bin/env python
import yaml
class Person(yaml.YAMLObject):
yaml_tag = '!person'
def __init__(self, name):
self.name = name...
Among $_REQUEST, $_GET and $_POST which one is the fastest?
...
$_GET retrieves variables from the querystring, or your URL.>
$_POST retrieves variables from a POST method, such as (generally) forms.
$_REQUEST is a merging of $_GET and $_POST where $_POST overrides $_GET. Good to use $_REQUEST on self refrential forms for va...
Run function from the command line
...function
This works because you are passing the command line argument (a string of the function's name) into locals, a dictionary with a current local symbol table. The parantheses at the end will make the function be called.
update: if you would like the function to accept a parameter from the c...
How to check whether a string contains a substring in JavaScript?
Usually I would expect a String.contains() method, but there doesn't seem to be one.
3 Answers
...
What does the brk() system call do?
...;assert.h>
#include <unistd.h>
int main(void) {
void *b;
char *p, *end;
b = sbrk(0);
p = (char *)b;
end = p + 0x1000000;
brk(end);
while (p < end) {
*(p++) = 1;
}
brk(b);
return 0;
}
Tested on Ubuntu 18.04.
Virtual address space visual...
Python argparse: How to insert newline in the help text?
...s its own _split_lines method, so that any formatting done to e.g. version strings is preserved:
parser.add_argument('--version', '-v', action="version",
version="version...\n 42!")
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