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Truncate number to two decimal places without rounding
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Convert the number into a string, match the number up to the second decimal place:
function calc(theform) {
var num = theform.original.value, rounded = theform.rounded
var with2Decimals = num.toString().match(/...
JSON to pandas DataFrame
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with open(file) as train_file:
dict_train = json.load(train_file)
# converting json dataset from dictionary to dataframe
train = pd.DataFrame.from_dict(dict_train, orient='index')
train.reset_index(level=0, inplace=True)
Hope it helps :)
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How can I get enum possible values in a MySQL database?
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to convert the Type Value into an array using php I made like this: $segments = str_replace("'", "", $row[0]['Type']); $segments = str_replace("enum", "", $segments); $segments = str_replace("(", "", $segments); $segments = ...
How can I dynamically create derived classes from a base class
.... The way to do that would be to get the caller's execution frame, through sys._getframe(1) and setting the class name in the frame's global dictionary in its f_globals attribute).
update, tl;dr: This answer had become popular, still its very specific to the question body. The general answer on how...
Bitwise operation and usage
...rns a tuple of its Red, Green and Blue values.
def hexToRgb(value):
# Convert string to hexadecimal number (base 16)
num = (int(value.lstrip("#"), 16))
# Shift 16 bits to the right, and then binary AND to obtain 8 bits representing red
r = ((num >> 16) & 0xFF)
# Shif...
Read whole ASCII file into C++ std::string [duplicate]
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@TonyD. Good point about converting eof() to a char. I suppose for old-school ascii character sets, passing any negative value (msb set to 1) would work. But passing \0 (or a negative value) won't work for wide or multi-byte input files.
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Resolving ambiguous overload on function pointer and std::function for a lambda using +
...f the argument.
The lambda is not of arithmetic type etc., but it can be converted:
[expr.prim.lambda]/3
The type of the lambda-expression [...] is a unique, unnamed non-union class type — called the closure type — whose properties are described below.
[expr.prim.lambda]/6
The closu...
How can I increment a char?
...'t! [miss the old days]. As you are trying a quickly achieve something or convert a piece of code, concepts and idioms of Python may seem to merely impede your progress and hardly be worth the learning curve... Be patient! You may even find that gaining proficiency in Python will improve your sty...
Which equals operator (== vs ===) should be used in JavaScript comparisons?
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Using the == operator (Equality)
true == 1; //true, because 'true' is converted to 1 and then compared
"2" == 2; //true, because "2" is converted to 2 and then compared
Using the === operator (Identity)
true === 1; //false
"2" === 2; //false
This is because the equality operator == does ...
How can I mix LaTeX in with Markdown? [closed]
...And now, just a few words to terminate:
> Goodbye folks!
Which can be converted to LaTeX using commands like this: pandoc -s -i Hello.md -o Hello.tex
Following is an image of the converted Hello.md to Hello.pdf file using MiKTeX as LaTeX processor with the command: pandoc -s -i Hello.md -o Hell...