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call a static method inside a class?
...ace.
$this::staticMethod();
Since PHP 5.3 you can use $var::method() to mean <class-of-$var>::; this is quite convenient, though the above use-case is still quite unconventional. So that brings us to the most common way of calling a static method:
self::staticMethod();
Now, before you st...
What is the difference between a shim and a polyfill?
... a library that brings a new API to an older environment, using
only the means of that environment.
A polyfill is a shim for a browser API. It typically checks if a browser
supports an API. If it doesn’t, the polyfill installs its own
implementation. That allows you to use the API in eithe...
Returning JSON from a PHP Script
...
What does it mean if this doesn't work? For example, to restrict only to calls from CodePen, I tried header('Access-Control-Allow-Origin: https://cdpn.io');, but I can still load the page from my own browser.
– ashl...
git switch branch without discarding local changes
...machinery, the same kind of thing it uses when you do branch merges. This means you can get "merge conflicts" if the branch you were working on by mistake, is sufficiently different from the branch you meant to be working on. So it's a good idea to inspect the results carefully before you assume t...
What exactly can cause an “HIERARCHY_REQUEST_ERR: DOM Exception 3”-Error?
...
It means you've tried to insert a DOM node into a place in the DOM tree where it cannot go. The most common place I see this is on Safari which doesn't allow the following:
document.appendChild(document.createElement('div'));
...
How to define a function in ghci across multiple lines?
...use :{ and :} you don't need to specify let before your type declaration, meaning that you don't need to indent second and subsequent lines.
– davidA
May 12 at 2:27
...
How to disable mouseout events triggered by child elements?
...the child div in the DOM. Wrapping them and putting a hover on the wrapper means that they are associated.
Please note that his code isn't in line with best practices, though. Don't set the hidden style inline on the elements; if the user has CSS but not javascript, the element will hide and will n...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...em, you must not use a 32 bits UNIX timestamp to store your dates -- which means, when using MySQL, you should not use TIMESTAMP, but DATETIME (see 10.3.1. The DATETIME, DATE, and TIMESTAMP Types) :
The DATETIME type is used when you
need values that contain both date and
time information. T...
how to mysqldump remote db from local machine
...tabase_name table_name
(do not use localhost, it's one of these 'special meaning' nonsense that probably connects by socket rather then by port)
edit: well, to elaborate: if host is set to localhost, a configured (or default) --socket option is assumed. See the manual for which option files are s...
Python logging not outputting anything
... haven't changed the level, the root logger's level is still warning.
That means that it will ignore any logging with a level that is lower than warning, including debug loggings.
This is explained in the tutorial:
import logging
logging.warning('Watch out!') # will print a message to the console
...