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Difference between setTimeout with and without quotes and parentheses
...Totally agree with Joseph.
Here is a fiddle to test this: http://jsfiddle.net/nicocube/63s2s/
In the context of the fiddle, the string argument do not work, in my opinion because the function is not defined in the global scope.
...
What is the difference between __init__ and __call__?
...ctor (as well as __del__() is the Class Destructor). Therefore, there is a net distinction between __init__() and __call__(): the first builds an instance of Class up, the second makes such instance callable as a function would be without impacting the lifecycle of the object itself (i.e. __call__ d...
How to get awaitable Thread.Sleep?
I'm writing a network-bound application based on await/sleep paradigm.
1 Answer
1
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Wait 5 seconds before executing next line
...should have a way to run async tests. If you mean manual testing: Chrome's Network tab has a Throttling dropdown to simulate slow requests.
– Joseph Silber
Sep 23 '16 at 2:02
1
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Dynamically generating a QR code with PHP [closed]
...answer I have attached 2 examples in PHP from http://phpqrcode.sourceforge.net/examples/index.php
1. QR code encoder
first include the library from your local path
include('../qrlib.php');
then to output the image directly as PNG stream do for example:
QRcode::png('your texte here...');
to s...
What is IP address '::1'?
I was playing with sockets on local machine with no network connection. See below:
2 Answers
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
...
I have reformatted your slow sql query with www.prettysql.net
SELECT *
FROM some_table
WHERE
relevant_field in
(
SELECT relevant_field
FROM some_table
GROUP BY relevant_field
HAVING COUNT ( * ) > 1
);
When using a table in both the query and the subquery, you should...
How can I get form data with JavaScript/jQuery?
...y known as XMLHttpRequest Level 2) so you must rely on a polyfill for Internet Explorer < 10. caniuse.com/#feat=xhr2
– Pier-Luc Gendreau
Jun 15 '15 at 23:18
3
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Find out whether Chrome console is open
...ntly the thing gets accessed only when console is open.
https://jsfiddle.net/gcdfs3oo/44/
var checkStatus;
var element = new Image();
Object.defineProperty(element, 'id', {
get: function() {
checkStatus='on';
throw new Error("Dev tools checker");
}
});
requestAnimation...
An algorithm for inflating/deflating (offsetting, buffering) polygons
...ou. See the documentation for the buffer operation: http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/operation/buffer/package-summary.html
For a rough overview see also the Developer Guide:
http://www.vividsolutions.com/jts/bin/JTS%20Developer%20Guide.pdf
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