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Extract value of attribute node via XPath
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What if I have a list of attributes and I need their values? string() seems to return just the first value.
– Konstantin Milyutin
Sep 18 '19 at 19:24
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SQLAlchemy - Getting a list of tables
...n you can use table reflection. SQLAlchemy will then inspect the database and update the metadata with all of the missing tables.
>>> metadata.reflect(engine)
For Postgres, if you have multiple schemas, you'll need to loop thru all the schemas in the engine:
from sqlalchemy import insp...
How to log SQL statements in Grails
...ssible. I want this as well as it's annoying for debugging certain classes and not wanting to see other queries as well.
– Guus
Oct 23 '15 at 16:22
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Mixin vs inheritance
What is the difference between a mixin and inheritance?
8 Answers
8
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In a bootstrap responsive page how to center a div
... </div>
</div>
It's a simple example of a horizontally and vertically div centered in all screen sizes.
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Design by contract using assertions or exceptions? [closed]
...ies, right? The two most prominent ways to do these checks are by assert and by exception .
14 Answers
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Detect when browser receives file download
...lution uses JavaScript on the client.
The client algorithm:
Generate a random unique token.
Submit the download request, and include the token in a GET/POST field.
Show the "waiting" indicator.
Start a timer, and every second or so, look for a cookie named "fileDownloadToken" (or whatever you dec...
Checking if array is multidimensional or not?
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Use count() twice; one time in default mode and one time in recursive mode. If the values match, the array is not multidimensional, as a multidimensional array would have a higher recursive count.
if (count($array) == count($array, COUNT_RECURSIVE))
{
echo 'array i...
The first day of the current month in php using date_modify as DateTime object
...')
->format('jS, F Y');
If you prefer a concise way to do this, and already have the year and month in numerical values, you can use date():
<?php
echo date('Y-m-01'); // first day of this month
echo date("$year-$month-01"); // first day of a month chosen by you
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Can a for loop increment/decrement by more than one?
Are there other ways to increment a for loop in Javascript besides i++ and ++i ? For example, I want to increment by 3 instead of one.
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