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jQuery deferreds and promises - .then() vs .done()
...tion (x) { // Suppose promise returns "abc"
console.log(x);
return 123;
}).then(function (x){
console.log(x);
}).then(function (x){
console.log(x)
})
The following results will get logged:
abc
123
undefined
While
promise.done(function (x) { // Suppose promise returns "abc"
...
Python recursive folder read
...
Make sure you understand the three return values of os.walk:
for root, subdirs, files in os.walk(rootdir):
has the following meaning:
root: Current path which is "walked through"
subdirs: Files in root of type directory
files: Files in root (not in subdirs) of type other ...
Get operating system info
...497878/
<?php
$user_agent = $_SERVER['HTTP_USER_AGENT'];
function getOS() {
global $user_agent;
$os_platform = "Unknown OS Platform";
$os_array = array(
'/windows nt 10/i' => 'Windows 10',
'/windows nt 6.3/i' ...
PHP script - detect whether running under linux or Windows?
...
Check the value of the PHP_OS constantDocs.
It will give you various values on Windows like WIN32, WINNT or Windows.
See as well: Possible Values For: PHP_OS and php_unameDocs:
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
echo 'This is a se...
os.path.dirname(__file__) returns empty
...
Because os.path.abspath = os.path.dirname + os.path.basename does not hold. we rather have
os.path.dirname(filename) + os.path.basename(filename) == filename
Both dirname() and basename() only split the passed filename into compo...
Disabled href tag
...
You can use:
<a href="/" onclick="return false;">123n</a>
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Open document with default OS application in Python, both in Windows and Mac OS
...e able to open a document using its default application in Windows and Mac OS. Basically, I want to do the same thing that happens when you double-click on the document icon in Explorer or Finder. What is the best way to do this in Python?
...
How can I check file size in Python?
...
You need the st_size property of the object returned by os.stat. You can get it by either using pathlib (Python 3.4+):
>>> from pathlib import Path
>>> Path('somefile.txt').stat()
os.stat_result(st_mode=33188, st_ino=6419862, st_dev=16777220, st_nlink=1, st_uid=...
Write a number with two decimal places SQL server
...ters to display, and the number of decimal places to display
Select Str(12345.6789, 12, 3)
displays: ' 12345.679' ( 3 spaces, 5 digits 12345, a decimal point, and three decimal digits (679). - it rounds if it has to truncate, (unless the integer part is too large for the total size, in whic...
How to open every file in a folder?
...
Os
You can list all files in the current directory using os.listdir:
import os
for filename in os.listdir(os.getcwd()):
with open(os.path.join(os.cwd(), filename), 'r') as f: # open in readonly mode
# do your stuff...