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How to calculate the number of days between two dates? [duplicate]
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I tested this with 2015-02-1 to 2015-03-01 and got 31 days. There's something wrong here... EDIT: Okay yeah.. javascript months are from 0-12 so if you're getting the input from a jquery datepicker or a regular normal date, sub...
What is the exact meaning of IFS=$'\n'?
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ANSI C-quoted strings is a key point. Thanks to @mklement0 .
You can test ANSI C-quoted strings with command od.
echo -n $'\n' | od -c
echo -n '\n' | od -c
echo -n $"\n" | od -c
echo -n "\n" | od -c
Outputs:
0000000 \n
0000001
0000000 \ n
0000002
0000000 \ n
0000002
000...
Send Email Intent
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This is quoted from Android official doc, I've tested it on Android 4.4, and works perfectly. See more examples at https://developer.android.com/guide/components/intents-common.html#Email
public void composeEmail(String[] addresses, String subject) {
Intent intent = ...
Is it possible to hide the cursor in a webpage using CSS or Javascript?
...y and not alpha channel transparency. If in doubt, check yourself with the test suite: libpng.org/pub/png/pngsuite.html.
– Shi
Jul 31 '11 at 21:50
3
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Python: Making a beep noise
...ast ';' after sleep is necessary for the resulting text sequence (*x)
also tested through ssh on an X term
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How do I replace the *first instance* of a string in .NET?
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Interesting, did you test your assumption about the regex approach being more expensive at runtime? How about speed? Perhaps the search using Regex is faster than using IndexOf?
– mfloryan
Sep 5 '11 at 10:45...
Python __str__ and lists
...e that output for, perhaps __repr__ might be more appropriate:
import unittest
class A(object):
def __init__(self, val):
self.val = val
def __repr__(self):
return repr(self.val)
class Test(unittest.TestCase):
def testMain(self):
l = [A('a'), A('b')]
se...
How can I get PHPUnit MockObjects to return different values based on a parameter?
...callback. e.g. (straight from PHPUnit documentation):
<?php
class StubTest extends PHPUnit_Framework_TestCase
{
public function testReturnCallbackStub()
{
$stub = $this->getMock(
'SomeClass', array('doSomething')
);
$stub->expects($this->any()...
Web scraping with Python [closed]
...commend Scrapy.
Quote from a deleted answer:
Scrapy crawling is fastest than mechanize because uses asynchronous operations (on top of Twisted).
Scrapy has better and fastest support for parsing (x)html on top of libxml2.
Scrapy is a mature framework with full unicode, handles redirectio...
Remove CSS class from element with JavaScript (no jQuery) [duplicate]
...ndard way to do it is using classList. It is now widely supported in the latest version of most modern browsers:
ELEMENT.classList.remove("CLASS_NAME");
remove.onclick = () => {
const el = document.querySelector('#el');
if (el.classList.contains("red")) {
el.classList.remove("re...