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JavaScript displaying a float to 2 decimal places
...nd a float at all) - you'll get something like 0.0500 or even 0.0500000000001. See floating-point-gui.de
– jmc
Jan 12 '18 at 0:08
...
convert_tz returns null
...d was unable to convert between timezones such as
SELECT CONVERT_TZ('2004-01-01 12:00:00','UTC','MET') AS time
It turns out that on OS X there are two files that cause problems: /usr/share/zoneinfo/Factory and /usr/share/zoneinfo/+VERSION.
The fix... temporarily moving these files to a differen...
How can I do a line break (line continuation) in Python?
...this:
if a == True and \
b == False
Check the style guide for more information.
From your example line:
a = '1' + '2' + '3' + \
'4' + '5'
Or:
a = ('1' + '2' + '3' +
'4' + '5')
Note that the style guide says that using the implicit continuation with parentheses is preferred, but ...
How can I delete a newline if it is the last character in a file?
...at shell command substitutions remove trailing newline characters:
Simple form that works in bash, ksh, zsh:
printf %s "$(< in.txt)" > out.txt
Portable (POSIX-compliant) alternative (slightly less efficient):
printf %s "$(cat in.txt)" > out.txt
Note:
If in.txt ends with multiple ne...
When is each sorting algorithm used? [closed]
...tions:
Quick sort: When you don't need a stable sort and average case performance matters more than worst case performance. A quick sort is O(N log N) on average, O(N^2) in the worst case. A good implementation uses O(log N) auxiliary storage in the form of stack space for recursion.
Merge sort...
Where is the Java SDK folder in my computer? Ubuntu 12.04
...
Dig again:
Step 2:
$ ls -l /usr/bin/java
lrwxrwxrwx 1 root root 22 2009-01-15 18:34 /usr/bin/java -> /etc/alternatives/java
So, now we know that /usr/bin/java is actually a symbolic link to /etc/alternatives/java.
Dig deeper using the same method above:
Step 3:
$ ls -l /etc/alternatives/j...
RAW POST using cURL in PHP
...tions::HEADERS => [
'Content-Type' => 'application/x-www-form-urlencoded',
],
]
);
echo(
$response->getBody()->getContents()
);
PHP CURL extension:
$curlHandler = curl_init();
curl_setopt_array($curlHandler, [
CURLOPT_URL => 'https://postman-echo.c...
How can I pass a parameter to a setTimeout() callback?
...tion object is generally considered poor style because it is essentially a form of delayed eval().
– Miles
Jul 27 '09 at 21:41
2
...
What does immutable mean?
... of the character array and the length of the array(String in a char array form)
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How do detect Android Tablets in general. Useragent?
... all tablet manufacturers.
... We recommend that manufactures of large-form-factor devices remove "Mobile" from the User Agent...
Most Android tablet user-agent strings I've seen use mobile safari, e.g. the Samsung Galaxy Tab:
Mozilla/5.0 (Linux; U; Android 2.2; en-us; SCH-I800 Build/FROYO...