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Generating random numbers in Objective-C
...C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
u_int32_t
arc4random(void);
void
arc4random_stir(void);
void
arc4random_addrandom(unsigned char *dat, int datlen);
DESCRIPTION
The arc4random() function uses the key stream generator employed by the...
How can I open Windows Explorer to a certain directory from within a WPF app?
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answered Nov 17 '09 at 2:01
Jamie PenneyJamie Penney
8,38833 gold badges2626 silver badges3737 bronze badges
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Default function arguments in Rust
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edited Mar 24 '19 at 21:20
answered Jun 5 '14 at 0:06
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PostgreSQL: Which Datatype should be used for Currency?
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Numeric with forced 2 units precision. Never use float or float like datatype to represent currency because if you do, people are going to be unhappy when the financial report's bottom line figure is incorrect by + or - a few dollars.
The mon...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
...nput text field in which I want to allow only numeric characters like (0,1,2,3,4,5...9) 0-9.
68 Answers
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How do I execute a string containing Python code in Python?
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For statements, use exec(string) (Python 2/3) or exec string (Python 2):
>>> mycode = 'print "hello world"'
>>> exec(mycode)
Hello world
When you need the value of an expression, use eval(string):
>>> x = eval("2+2")
>>> x
4
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Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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102
Granted that the behavior is inconsistent, but I think it's easy to imagine cases where this is ...
What is the maximum float in Python?
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279
For float have a look at sys.float_info:
>>> import sys
>>> sys.float_info
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