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Using Rails 3.1, where do you put your “page specific” JavaScript code?
...I really like this solution. The only problem I have with it is that those extra manifests are not compressed/uglified. They are properly compiled though. Is there a solution or am I missing something?
– clst
Dec 8 '11 at 16:31
...
How do I get the path and name of the file that is currently executing?
... this is weird: when running from command line "__file__" in quotes (as string) gives the dir from which cmd is run, but __file__ (without quotes gives the path to the source file ... why is that
– muon
May 9 '18 at 13:53
...
Why are trailing commas allowed in a list?
...but forgot to add a comma on the previous line
]
and triggering implicit string literal concatenation, producing s = ['manny', 'mo', 'jackroger'] instead of the intended result.
share
|
improve th...
enum - getting value of enum on string conversion
...d a __str__ method to your enum, if all you wanted was to provide a custom string representation:
class D(Enum):
def __str__(self):
return str(self.value)
x = 1
y = 2
Demo:
>>> from enum import Enum
>>> class D(Enum):
... def __str__(self):
... ...
Is gcc 4.8 or earlier buggy about regular expressions?
...lt;iostream>
int main() {
const std::regex regex(".*");
const std::string string = "This should match!";
const auto result = std::regex_search(string, regex);
#if HAVE_WORKING_REGEX
std::cerr << "<regex> works, look: " << std::boolalpha << result << std::end...
Get a filtered list of files in a directory
...ead for very large data sets, but for listing a directory and other simple string filtering tasks, list comprehensions lead to more clean documentable code.
The only thing about this design is that it doesn't protect you against making the mistake of passing a string instead of a list. For example...
Kill a Process by Looking up the Port being used by it from a .BAT
... were using this directly on the command line, instead of inside a command string, you would use | instead of ^|.
findstr :8080
This filters any output that is passed into it, returning only lines that contain :8080.
TaskKill.exe /PID <value>
This kills a running task, using the process ...
RAII and smart pointers in C++
...ance (and stealing an example from another answer):
void foo() {
std::string str;
// Do cool things to or using str
}
This works fine - but what if we want to return str? We could write this:
std::string foo() {
std::string str;
// Do cool things to or using str
return str;
}...
Escape double quotes in a string
...
No.
Either use verbatim string literals as you have, or escape the " using backslash.
string test = "He said to me, \"Hello World\" . How are you?";
The string has not changed in either case - there is a single escaped " in it. This is just a way...
c++文件流基本用法(ifstream, ostream,fstream) - C/C++ - 清泛网 - 专注C/C++及内核技术
...二: 读文件
#include <fstream.h>
void main
{
ifstream file;
char output[100];
int x;
file.open("file.txt");
file>>output;
cout<<output;
file>>x;
cout<<x;
file.close();
}
上面所讲的ofstream和ifstream只能进行读或是写，而fstream则同时...