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Java: Integer equals vs. ==
...s small integers.
If the value p being boxed is true, false, a byte, a char in the range \u0000 to \u007f, or an int or short number between -128 and 127, then let r1 and r2 be the results of any two boxing conversions of p. It is always the case that r1 == r2.
Resources :
JLS - Boxing
O...
Remove all special characters except space from a string using JavaScript
I want to remove all special characters except space from a string using JavaScript.
11 Answers
...
How to find out what character key is pressed?
I would like to find out what character key is pressed in a cross-browser compatible way in pure Javascript.
8 Answers
...
Remove Last Comma from a string
...cript, how can I remove the last comma, but only if the comma is the last character or if there is only white space after the comma? This is my code.
I got a working fiddle . But it has a bug.
...
Given a URL to a text file, what is the simplest way to read the contents of the text file?
... = urllib2.urlopen("http://www.google.com").read(20000) # read only 20 000 chars
data = data.split("\n") # then split it into lines
for line in data:
print line
* Second example in Python 3:
import urllib.request # the lib that handles the url stuff
for line in urllib.request.urlopen(t...
Delete empty lines using sed
...\s*$ will match all "empty" lines, empty here means, the line contains no chars, or the line contains only empty strings (E.g. spaces). All matched lines will be removed by sed, with the d command.
– Kent
Feb 26 '17 at 19:41
...
“Unicode Error ”unicodeescape" codec can't decode bytes… Cannot open text files in Python 3 [duplica
...Users\Eric\Desktop\beeline.txt"
Here, \U in "C:\Users... starts an eight-character Unicode escape, such as \U00014321. In your code, the escape is followed by the character 's', which is invalid.
You either need to duplicate all backslashes:
"C:\\Users\\Eric\\Desktop\\beeline.txt"
Or prefix th...
Convert DOS line endings to Linux line endings in Vim
...s I created in Windows, the lines all end with ^M .
How do I delete these characters all at once?
26 Answers
...
Grabbing the href attribute of an A element
...matches <a at the begining of the string, followed by any number of any char (non greedy) .*? then href= followed by the link surrounded by either " or '
$str = '<a title="this" href="that">what?</a>';
preg_match('/^<a.*?href=(["\'])(.*?)\1.*$/', $str, $m);
var_dump($m);
Output:...
How can I format a String number to have commas and round?
...as well merge this into a BigInteger type of class that handles compressed char[] arrays for math computations.
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