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What is lazy loading in Hibernate?
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Oh, Stack Overflow - best answer to be found at the bottom of the page ;-)
– Piotrek Hryciuk
Jan 27 '19 at 20:46
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Eclipse doesn't highlight references anymore
...ences".
You probably accidentally pressed it when trying to select a menu item at some point. I had a friend who did that with the "show selected element only" toolbar button...
You can either press it again or configure as Rytmis says.
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How to check if element is visible after scrolling?
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Update: use IntersectionObserver
The best method I have found so far is the jQuery appear plugin. Works like a charm.
Mimics a custom "appear" event, which fires when an element scrolls into view or otherwise becomes visible to the user.
$('#foo').appear(fu...
How do I get an empty array of any size in python?
...ars in each element of the array. If it a mutable obj, and you modify one item, all will be changed. ...But, for this example using integers (or any other immutable type), it makes no difference. Or, if you just assign to elements, it is not a problem either. (I mention it because I've done exac...
move_uploaded_file gives “failed to open stream: Permission denied” error
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This is the best answer.
– saviour123
Nov 8 '17 at 16:19
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How to sort a list of lists by a specific index of the inner list?
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This is a job for itemgetter
>>> from operator import itemgetter
>>> L=[[0, 1, 'f'], [4, 2, 't'], [9, 4, 'afsd']]
>>> sorted(L, key=itemgetter(2))
[[9, 4, 'afsd'], [0, 1, 'f'], [4, 2, 't']]
It is also possible to ...
Override and reset CSS style: auto or none don't work
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The best way that I've found to revert a min-width setting is:
min-width: 0;
min-width: unset;
unset is in the spec, but some browsers (IE 10) do not respect it, so 0 is a good fallback in most cases.
min-width: 0;
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What's the difference between deque and list STL containers?
...ery edit operation invalidates all your iterators - so to "delete matching items" you need to accumulate the matching items in one operation, and then delete them in another. In a list, you can walk through it, remove and add as you wish, and never have to recalculate an iterator.
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Canvas width and height in HTML5
...anvas.style.width = "500px";
canvas.style.height = "400px";
The arguably best way to make a canvas 1x1 pixels is to ALWAYS USE CSS to choose the size then write a tiny bit of JavaScript to make the number of pixels match that size.
function resizeCanvasToDisplaySize(canvas) {
// look up the si...
What are the lesser known but useful data structures?
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Bloom filter: Bit array of m bits, initially all set to 0.
To add an item you run it through k hash functions that will give you k indices in the array which you then set to 1.
To check if an item is in the set, compute the k indices and check if they are all set to 1.
Of course, this give...