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Java 8 forEach with index [duplicate]
...
170
Since you are iterating over an indexable collection (lists, etc.), I presume that you can then ...
What's the difference between eval, exec, and compile?
... as an expression, so it really does not return anything).
In versions 1.0 - 2.7, exec was a statement, because CPython needed to produce a different kind of code object for functions that used exec for its side effects inside the function.
In Python 3, exec is a function; its use has no effect ...
Python pandas Filtering out nan from a data selection of a column of strings
...en drop where name is NaN:
In [87]:
nms
Out[87]:
movie name rating
0 thg John 3
1 thg NaN 4
3 mol Graham NaN
4 lob NaN NaN
5 lob NaN NaN
[5 rows x 3 columns]
In [89]:
nms = nms.dropna(thresh=2)
In [90]:
nms[nms.name.notnull()]
Out[90]:
m...
Conveniently Declaring Compile-Time Strings in C++
...ng to match the elegance of Scott Schurr's str_const presented at C++ Now 2012. It does require constexpr though.
Here's how you can use it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13, "");
static_assert(my_st...
Sorting Python list based on the length of the string
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205
When you pass a lambda to sort, you need to return an integer, not a boolean. So your code sho...
Why is reading lines from stdin much slower in C++ than Python?
...
10 Answers
10
Active
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Converting an integer to a string in PHP
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800
You can use the strval() function to convert a number to a string.
From a maintenance perspecti...
What are the aspect ratios for all Android phone and tablet devices?
...══════════╣
║ 19.5 x 9 ║ 0.462... ║ 2.167... ║
╠══════════════════════════╬════════════════════════╬══════...
Format numbers to strings in Python
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140
Starting with Python 3.6, formatting in Python can be done using formatted string literals or f-...
What is the syntax to insert one list into another list in python?
... |
edited Jan 8 '15 at 22:03
the Tin Man
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