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How do I get the number of elements in a list?
... xrange, dict, set, frozenset))
True
Do not use len to test for an empty or nonempty list
To test for a specific length, of course, simply test for equality:
if len(items) == required_length:
...
But there's a special case for testing for a zero length list or the inverse...
Selenium wait until document is ready
...ething like 'find' to make it wait but I don't go that far. I just need to test that the page loads successfully and move on to next page to test.
...
Are PHP functions case sensitive?
...isplaying output, all will show the same result.
<?php
Echo "This is a test script";
ECHO "This is a test script";
echo "This is a test script";
?>
On the other hand, if you will change the case sensitivity of variables then it will show the error.
Example:
<?php
$a=5;
echo $A;// It wi...
What is the most effective way for float and double comparison?
...
I found that the Google C++ Testing Framework contains a nice cross-platform template-based implementation of AlmostEqual2sComplement which works on both doubles and floats. Given that it is released under the BSD license, using it in your own code shou...
Daylight saving time and time zone best practices [closed]
...an use UTC, but future time scheduling and date-only values should not.)
Testing:
When testing, make sure you test countries in the Western, Eastern, Northern and Southern hemispheres (in fact in each quarter of the globe, so 4 regions), with both DST in progress and not (gives 8), and a country...
The developers of this app have not set up this app properly for Facebook Login?
... make sure that any users that will be using the facebook app are added as testers/develoers/admins etc. (under the "roles" menu). That way you can keep the app private during development but still test out the functionality. Then just flick the switch when you go live.
– Mikey...
Permission denied on accessing host directory in Docker
...ate --driver local \
--opt type=none \
--opt device=/home/user/test \
--opt o=bind \
test_vol
# create on the fly with --mount
$ docker run -it --rm \
--mount type=volume,dst=/container/path,volume-driver=local,volume-opt=type=none,volume-opt=o=bind,volume-opt=device...
Sending HTML email using Python
...msg = email.message.Message()
msg['Subject'] = 'foo'
msg['From'] = 'sender@test.com'
msg['To'] = 'recipient@test.com'
msg.add_header('Content-Type','text/html')
msg.set_payload('Body of <b>message</b>')
# Send the message via local SMTP server.
s = smtplib.SMTP('localhost')
s.starttls()...
How to select unique records by SQL
...ression (CTE) with ROW_NUMBER()
Consider the following sample TABLE with test data:
/** Create test table */
CREATE TEMPORARY TABLE dupes(word text, num int, id int);
/** Add test data with duplicates */
INSERT INTO dupes(word, num, id)
VALUES ('aaa', 100, 1)
,('bbb', 200, 2)
,('ccc'...
How do you diff a directory for only files of a specific type?
...ER += lib
FOLDER += Image
FOLDER += models
OPTIONS = Naur
patch:
rm test.patch
diff -$(OPTIONS) \
$(foreach element, $(SUFFIX) , -x '*.$(element)') \
$(foreach element, $(FOLDER) , -x '$(element)*') \
org/ new/ > test.patch
unpatch:
rm test.unpatch
diff -$(O...