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How can you represent inheritance in a database?
...to tackle inheritance is to create a new table for each subtype, repeating all the common attributes in each table. For example:
--// Table: policies_motor
+------+---------------------+----------------+
| id | date_issued | vehicle_reg_no |
+------+---------------------+----------------+
...
Freeze the top row for an html table only (Fixed Table Header Scrolling) [duplicate]
... make an html table with the top row frozen (so when you scroll down vertically you can always see it).
10 Answers
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Can Mockito capture arguments of a method called multiple times?
I have a method that gets called twice, and I want to capture the argument of the second method call.
6 Answers
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window.onload vs document.onload
....onload and fires when the DOM is ready as well.
document.onload
It is called when the DOM is ready which can be prior to images and other external content is loaded.
How well are they supported?
window.onload appears to be the most widely supported. In fact, some of the most modern browsers h...
Real World Example of the Strategy Pattern
...
What about this:
You have to encrypt a file.
For small files, you can use "in memory" strategy, where the complete file is read and kept in memory ( let's say for files < 1 gb )
For large files, you can use another strategy, where parts of the file are read in memory and...
JavaScript: Upload file
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Pure JS
You can use fetch optionally with await-try-catch
let photo = document.getElementById("image-file").files[0];
let formData = new FormData();
formData.append("photo", photo);
fetch('/upload/image', {method: "POST", body: formData});
async fu...
Xcode debugger doesn't print objects and shows nil, when they aren't
...ation". Here set "Debug". If it was on "Release" that's the matter you saw all nils).
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PHP Remove elements from associative array
...',
4 => 'Completed',
5 => 'Mark As Spam',
);
That would allow you to use your values of key as indexes to access the array...
And you'd be able to use functions to search on the values, such as array_search() :
$indexCompleted = array_search('Completed', $array);
unset($array[$...
Adjust list style image position?
...
Not really. Your padding is (probably) being applied to the list item, so will only affect the actual content within the list item.
Using a combination of background and padding styles can create something that looks similar e.g.
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Difference between thread's context class loader and normal classloader
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Indeed, not all classloaders have a classpath. When wrote "ClassB needs to be on the classpath of the classloader of ClassA", I meant "ClassB needs to loadable by the classloader of ClassA". 90% of the time they mean the same. But if ...