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Event on a disabled input
...he jsFiddle site didn't work for me in IE11, I had to paste it into a .htm file instead)
– Doin
Feb 4 '17 at 21:11
Tha...
Why is using onClick() in HTML a bad practice?
..." id="someLink">link</a>
with the logic in a central javascript file looking something like this:
$('#someLink').click(function(){
popup('/map/', 300, 300, 'map');
return false;
});
The advantages are
behaviour (Javascript) is separated from presentation (HTML)
no mixing of ...
Null vs. False vs. 0 in PHP
...ting means it also failed the filter?)
Methods returning false/null/string/etc interchangeably is a hack when the author care about the type of failure, for example, with filter_input() you can check for ===false or ===null if you care why the validation failed. But if you don't it might be a pitfal...
HTML5 Canvas vs. SVG vs. div
...eady built in. SVG objects are DOM objects, so they have "click" handlers, etc.
DIVs are okay but clunky and have awful performance loading at large numbers.
Canvas has the best performance hands-down, but you have to implement all concepts of managed state (object selection, etc) yourself, or use...
iphone Core Data Unresolved error while saving
...e that at least in my experience even though it wasn't saved to the sqlite file, the changes did make its way into the context. So the behavior may be erratic when this happens.
– nickthedude
Feb 27 '13 at 5:14
...
How to get current user, and how to use User class in MVC5?
...o best practice yet, but found some valuable info on extending the user profile:
Overview of Identity: https://devblogs.microsoft.com/aspnet/introducing-asp-net-identity-a-membership-system-for-asp-net-applications/
Example solution regarding how to extend the user profile by adding an extra prope...
How do I migrate a model out of one django app and into a new one?
... 0003_create_cat.py
`-- models.py
Now we need to edit both migration files:
#0003_create_cat: replace existing forward and backward code
#to use just one sentence:
def forwards(self, orm):
db.rename_table('common_cat', 'specific_cat')
if not db.dry_run:
# For permissions to...
What's the difference between fill_parent and wrap_content?
...etc.) needs to set the width and the height of the view. In the xml layout file, that might look like this:
android:layout_width="wrap_content"
android:layout_height="match_parent"
Besides setting the width and height to match_parent or wrap_content, you could also set them to some absolute value...
What are the advantages of using the C++ Boost libraries? [closed]
...d to compose stuff easily. smart pointers, functions, lambdas, bindings, etc. Then there are boost libraries which exploit this newer way of writing C++ to provide things like networking, regex, etc etc...
if you are writing lots of for loops, or hand rolling function objects, or doing memory m...
What is a postback?
...age will be manipulated by the user (a button clicked or dropdown changed, etc), and this control will initiate a postback. The state of this control, plus all other controls on the page,(known as the View State) is Posted Back to the web server.
What happens?
Most commonly the postback causes the...