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How to center canvas in html5
... bottom: 0;
left: 0;
right: 0;
}
The canvas will center itself based on the first parent element that has position set to relative or absolute, or the body if none is found.
Another approach would be to use display: flex, that is available in IE11
Also, make sure you use a recent docty...
SQL WHERE ID IN (id1, id2, …, idn)
...horrible performance-wise. It sends a query every loop and hammers the database with small queries. It also prevents it from using any optimizations for "value is one of those in a given list"
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JavaScript code to stop form submission
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Base on @Vikram Pudi answer, we can also do like this with pure Javascript
<form onsubmit="submitForm(event)">
<input type="text">
<input type="submit">
</form>
<script type="text/javascri...
“This project is incompatible with the current version of Visual Studio”
...
VS 2012 has different project type support based on what you install at setup time and which edition you have. Certain options are available, e.g. web development tools, database development tools, etc. So if you're trying to open a web project but the web development...
Breaking out of nested loops [duplicate]
... of sentences and using several for loops to filter out specific sentences based on existence of specific words or numbers, before doing the actual work at the end of the outer for loop.
– Anthon
Oct 4 '12 at 6:51
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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
... prevent the error from occurring:
from django.db import transaction, DatabaseError
try:
a.save()
except DatabaseError:
transaction.rollback()
Refer : Django documentation
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php - get numeric index of associative array
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All solutions based on array_keys don't work for mixed arrays. Solution is simple:
echo array_search($needle,array_keys($haystack), true);
From php.net:
If the third parameter strict is set to TRUE then the array_search() function will ...
MVC (Laravel) where to add logic
...le Controller or a single Model. You can create as many services as needed based on the design and needs of your application. Add to that the advantage of calling a Service within any class of your application.
This goes long, but I would like to show you how I have structured my application:
app/...
How to override the properties of a CSS class using another CSS class
...om css-tricks.com will help you produce right specificity for your element based on a points structure. Whichever specificity has higher points, will win. Sounds like a game - doesn't it?
Checkout sample calculations here on css-tricks.com. This will help you understand the concept very well and ...
Can I use a function for a default value in MySql?
...mbedded in the 1980's technology that apparently still exists in the MySQL base code (search for"we can't have nice things"): percona.com/blog/2013/04/08/…
– RyanNerd
Dec 11 '17 at 22:55
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