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What is a smart pointer and when should I use one?
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A smart pointer is like a regular (typed) pointer, like "char*", except when the pointer itself goes out of scope then what it points to is deleted as well. You can use it like you would a regular pointer, by using "->", but not if you need an actual pointer to the data. For tha...
Div height 100% and expands to fit content
...element a little bit taller than the children elements, then check for any extra spaces and/or  , remove them. Also try to adjust the line-height. For example I've put line-height: 0, because I didn't need text, just to show an image.
– Zorgatone
Nov ...
How do you append to a file in Python?
... "a"), that a indicates the appending the file, that means allow to insert extra data to the existing file.
You can just use this following lines to append the text in your file
def FileSave(filename,content):
with open(filename, "a") as myfile:
myfile.write(content)
FileSave("test.tx...
How to iterate over a JavaScript object?
...ts and their properties.
If you want to do it "in chunks", the best is to extract the keys in an array. As the order isn't guaranteed, this is the proper way. In modern browsers, you can use
let keys = Object.keys(yourobject);
To be more compatible, you'd better do this :
let keys = [];
for (...
What is the >>>= operator in C?
...s a boolean it's true, so 0xFULL ? '\0' : -1 evaluates to '\0', which is a character literal whose numerical value is simply 0.
Meanwhile, 0X.1P1 is a hexadecimal floating point literal equal to 2/16 = 0.125. In any case, being non-zero, it's also true as a boolean, so negating it twice with !! ag...
form_for with nested resources
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Jam's way works, but you can end up with extra routes that you probably don't know about. It's better to be explicit.
– cdunn2001
Jun 28 '14 at 19:13
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Bootstrap 3: pull-right for col-lg only
...ludes responsive floats, so in this case you'd just use float-lg-right. No extra CSS is needed.
Bootstrap 4 Demo
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Using relative URL in CSS file, what location is it relative to?
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What difference does the extra "/" at the front make?
– Casebash
May 12 '11 at 6:36
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Which terminal command to get just IP address and nothing else?
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Same, this does the job perfectly with no extra tools and no need to call fifteen binaries in a row to cleanup the output. Thanks !
– Ulrar
Sep 12 '18 at 7:18
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Fragment over another fragment issue
...he bottom fragment has to be informed the top one is gone. It's just added extra logic to maintain.
– X.Y.
Nov 14 '19 at 3:20
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