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How do I convert a Vector of bytes (u8) to a string
...s not require an allocation. You can create a String from the string slice if necessary by calling .to_owned() on the string slice (other options are available).
The library reference for the conversion function:
std::str::from_utf8
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Editing Javascript using Chrome Developer Tools
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I know this question is stale, but I just had a similar problem and found the solution.
If you have the file prettified, Chrome will not allow edits. I turned it off and was able to edit. Willing to bet this is/was your problem...
java.lang.UnsupportedClassVersionError: Bad version number in .class file?
...r when I include an opensource library that I had to compile from source. Now, all the suggestions on the web indicate that the code was compiled in one version and executed in another version (new on old). However, I only have one version of JRE on my system. If I run the commands:
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e.printStackTrace equivalent in python
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If you're working inside some kind of container such as Jython and therefore cannot just print the trace, you can format_exc instead to get a string.
– SeldomNeedy
Oct 14 '16 at 4:13
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Does Java have something like C#'s ref and out keywords?
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That is not 100% true, If you pass in an array or a class the reference to the array or object is passed in by value, You can change internals to the array or object and it will be reflected in the caller.
– Romain Hippeau
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Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
...emory at any random time during code execution. This had the upside of me now having the world's most memory efficient code, created in the hunt for a memory leak.
– Kris Selbekk
Oct 15 '13 at 18:13
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Two-dimensional array in Swift
...[0] += [345, 678]
If you had 3x2 array of 0(zeros) before these changes, now you have:
[
[0, 0, 234, 345, 678], // 5 elements!
[123, 456, 789],
[0, 0]
]
So be aware that sub arrays are mutable and you can redefine initial array that represented matrix.
Examine size/bounds before access...
django : using select_related and get_object_or_404 together
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Resolving ambiguous overload on function pointer and std::function for a lambda using +
...ked up by an argument by Daniel Krügler, this unary + trick should be specified behaviour, i.e. you can rely on it (see discussion in the comments).
Still, I'd recommend using an explicit cast to the function pointer type if you want to avoid the ambiguity: you don't need to ask on SO what is does...
python-pandas and databases like mysql
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frame_query is now deprecated. Now use pd.read_sql(query, db) instead.
– Robert Smith
Apr 24 '15 at 22:43
add a com...