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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
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A query may fail for various reasons in which case both the mysql_* and the mysqli extension will return false from their respective query functions/methods. You need to test for that error condition and handle it accordingly.
mysql_* extension:
NOTE The mysql_ functions are deprecated a...
jQuery click events firing multiple times
... video poker game in Javascript as a way of getting the basics of it down, and I've run into a problem where the jQuery click event handlers are firing multiple times.
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JavaScript math, round to two decimal places [duplicate]
... ) instead of forcing type coersion as it is more obvious to other people (and you later)
– Hugo Buff
Mar 24 '17 at 14:59
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Detect changes in the DOM
...need to create your own domChanged API - with a function or custom event - and trigger/call it everywhere you modify things.
The DOM Level-2 has Mutation event types, but older version of IE don't support it. Note that the mutation events are deprecated in the DOM3 Events spec and have a performan...
How to select Python version in PyCharm?
I have PyCharm 1.5.4 and have used the "Open Directory" option to open the contents of a folder in the IDE.
6 Answers
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Converting XDocument to XmlDocument and vice versa
... to generate an XML file. I then want to return it as a XmlDocument class.
And I have an XmlDocument variable which I need to convert back to XDocument to append more nodes.
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How to add to the PYTHONPATH in Windows, so it finds my modules/packages?
...ue:C:\path\to\python\version
Click [OK]
Locate the "Path" System variable and click [Edit]
Add the following to the existing variable:
%PY_HOME%;%PY_HOME%\Lib;%PY_HOME%\DLLs;%PY_HOME%\Lib\lib-tk;
Click [OK] to close all of the windows.
As a final sanity check open a command prompt and enter py...
jQuery: Test if checkbox is NOT checked
...res the actual state of the checkbox. If you wish you can inspect the page and try to check and uncheck a checkbox, and you will notice the attribute "checked" (if present) will remain the same. This attribute only represents the initial state of the checkbox, and not the current state. The current ...
How to pause a YouTube player when hiding the iframe?
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The easiest way to implement this behaviour is by calling the pauseVideo and playVideo methods, when necessary. Inspired by the result of my previous answer, I have written a pluginless function to achieve the desired behaviour.
The only adjustments:
I have added a function, toggleVideo
I have ...
Hashing a string with Sha256
...ts, you'd better try a few test cases with non-ASCII characters such as é and 家 and see whether your results still match up. If not, you'll have to figure out what encoding your friend is really using; it might be one of the 8-bit "code pages" that used to be popular before the invention of Unico...