destr | Faster , secure and convenient alternative for JSON.parse
kandi X-RAY | destr Summary
kandi X-RAY | destr Summary
A faster, secure and convenient alternative for JSON.parse:.
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QUESTION
As far as I know destructor is called when an element is erased from container, please correct me if I'm wrong..But Destr X prints shouldn't appear before after erase
...ANSWER
Answered 2021-May-02 at 12:56Since you use a shared_ptr, you have two references to both objects. These are x and x2, and the shared_ptrs inside vector v.
When you erase(), the destructor of shared_ptr is called, and the reference count is decremented, but still 1. Therefore object X still exists.
After leaving the scope of main(), the count is decremented again. Now the count goes down to zero, and the destructor of object X is called.
Hence the output "after erase" is shown first, and only then "Destr X".
When you put x and x2 in an inner scope, you will see the expected behaviour
QUESTION
I have data on online job postings, but with some variables structured as string when I want them to be numerical to create time series graphs as in here.
The three variables I am interested in converting into numeric variables look as follows:
...ANSWER
Answered 2021-Apr-25 at 14:30I was able to run code to get the data into almost the form you wanted, but not for the date values like 44150.33611, etc. These seem to be excel format as noted by @JR96.
I recommend using the split function and a really handy write up by Nick Cox is a useful read (source).
QUESTION
I have a dataframe like the following:
...ANSWER
Answered 2021-Mar-17 at 07:31You can join only list in lambda function like:
QUESTION
To find a path in a 2D map, I call get_building_path() on a Person instance, but it keeps returning None. I have no idea what is going wrong as I am pretty new to Python.
Below I have provided code needed to reproduce the issue. I have tried many things but I still don't understand why it keeps returning None:
ANSWER
Answered 2021-Feb-24 at 22:25A few issues:
others.remove(None)only removes the first occurrence ofNonemap[row][col] != 'road'will be True when arriving at the target, so this test should be only done after you have verified that you have not yet arrived at the target.map[row][col] != 'road'will potentially give an error whenroworcolare out of range, so you should first do that range check
So path_helper should be corrected to:
QUESTION
I´m trying to print my CI with esttab in this order:
My code with the cars.csv dataset form https://gist.github.com/noamross/e5d3e859aa0c794be10b#file-cars-csv:
...ANSWER
Answered 2020-Nov-25 at 01:39estadd allows you to add anything as a scalar and include it as follows:
QUESTION
I have a sheet with 4 cells of delimited data: A1:A3 has the data--delimited by a ;. A1 has red;blue;yellow, A2 has green;orange, A3 has pink;purple. How can I ungroup this data and then use this code to transpose it like this:
ANSWER
Answered 2020-Oct-21 at 14:48Here is a VBA approach using Split.
QUESTION
I want to know if it is possible to destring things in Python.
I want to actually run the string returned by the input function. Is this possible in Python 3? Thanks in advance.
...ANSWER
Answered 2020-Jul-26 at 04:59s = input("What would you like to create?")
exec(s)
QUESTION
I cannot find the syntax error in this code of a MIPS decoder. I am currently inside of the default case, and it gives me the errors
Decoder.v:104: syntax error.
Decoder.v:106: Syntax in assignment statement l-value
Here is the code:
...ANSWER
Answered 2020-Jul-01 at 16:53I get 2 compile errors.
The 1st is due to a missing end statement before the default:
QUESTION
I'm working on drawing semi-transparent images on top of other images for a small 2d game. To currently blend the images I'm using the formula found here: https://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending
My implementation of this is as follows;
...ANSWER
Answered 2020-Jun-12 at 06:29not a java coder (so read with prejudice) but you are doing some things really wrong (from mine C++ and low level gfx perspective):
mixing integers and floating point
that requires conversions which are sometimes really costly... Its much better to use integer weights (alpha) in range
<0..255>and then just divide by 255 or bitshift by 8. That would be most likely much faster.bitshifting/masking to obtain bytes
yes its fine but there are simpler and faster methods simply by using
QUESTION
I am trying to plot a scatter plot and keep failing at that. My data df[1:10,] looks like this:
ANSWER
Answered 2020-May-08 at 19:19If you modify the data into long format it should work:
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