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Catching an exception while using a Python 'with' statement
...
@ncoghlan But you can add extra try...except blocks inside with to be closer to the source of an exception that doesn't have anything to do with open().
– rbaleksandar
May 19 '17 at 14:44
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Difference between local and global indexes in DynamoDB
...OBAL_RANGE_US_TS)
@DynamoDBAttribute(attributeName = PROPERTY_USER)
public String getUser() {
return user;
}
For range index associated to the global index:
@DynamoDBIndexRangeKey(globalSecondaryIndexName = INDEX_GLOBAL_RANGE_US_TS)
@DynamoDBAttribute(attributeName = PROPERTY_TIMESTAMP)
public...
Measuring execution time of a function in C++
...usage:
#include <iostream>
#include <algorithm>
typedef std::string String;
//first test function doing something
int countCharInString(String s, char delim){
int count=0;
String::size_type pos = s.find_first_of(delim);
while ((pos = s.find_first_of(delim, pos)) != String:...
Prevent “overscrolling” of web page
...oll its content within. This works in Safari and in Chrome.
Edit
Why the extra <div>-element as a wrapper could be useful: Florian Feldhaus' solution uses slightly less code and works fine too. However, it can have a little quirk, when it comes to content that exceeds the viewport width. In ...
What does the unary plus operator do?
... answered Oct 11 '10 at 2:07
Charles SalviaCharles Salvia
47.1k1212 gold badges116116 silver badges137137 bronze badges
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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...lso often superior to RAII when dealing with shared immutable objects like strings which often have no clear owner and require no cleanup. It's unfortunate that more frameworks don't seek to combine GC and RAII, since most applications will have a mix of immutable objects (where GC would be best) a...
How to print color in console using System.out.println?
...you could define constants like these for the colors:
public static final String ANSI_RESET = "\u001B[0m";
public static final String ANSI_BLACK = "\u001B[30m";
public static final String ANSI_RED = "\u001B[31m";
public static final String ANSI_GREEN = "\u001B[32m";
public static final String ANSI_...
Why does String.split need pipe delimiter to be escaped?
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String.split expects a regular expression argument. An unescaped | is parsed as a regex meaning "empty string or empty string," which isn't what you mean.
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Determine version of Entity Framework I am using?
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internal static string GetEntityFrameworkVersion()
{
var version = "";
var assemblies = System.AppDomain.CurrentDomain.GetAssemblies().Select(x => x.FullName).ToList();
foreach(var asm in assemblies)
{
...
How to get current timestamp in milliseconds since 1970 just the way Java gets
...e 767990892 which is round 8 days after the epoch ;-).
int main(int argc, char* argv[])
{
struct timeval tp;
gettimeofday(&tp, NULL);
long long mslong = (long long) tp.tv_sec * 1000L + tp.tv_usec / 1000; //get current timestamp in milliseconds
std::cout << mslong << ...