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Java 8 Stream and operation on arrays
...ct, ... functions are provided.
Take a look at why-cant-i-map-integers-to-strings-when-streaming-from-an-array
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Compare integer in bash, unary operator expected
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Judging from the error message the value of i was the empty string when you executed it, not 0.
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How add “or” in switch statements?
...m 3=Large");
Console.Write("Please enter your selection: ");
string s = Console.ReadLine();
int n = int.Parse(s);
int cost = 0;
switch(n)
{
case 1:
cost += 25;
break;
case 2: ...
How to compare two dates?
...
Use time
Let's say you have the initial dates as strings like these:
date1 = "31/12/2015"
date2 = "01/01/2016"
You can do the following:
newdate1 = time.strptime(date1, "%d/%m/%Y") and newdate2 = time.strptime(date2, "%d/%m/%Y") to convert them to python's date format. The...
Proper use of 'yield return'
...{
yield return new Trip
{
Id = i.ToString(),
Driver = new Driver { Id = i.ToString() }
};
}
}
Then iterate through each trip:
static void Main(string[] args)
{
foreach (var trip in CreatePossibleTrips(...
Forward an invocation of a variadic function in C
...t.h>
#include <alloca.h>
#include <inttypes.h>
#include <string.h>
/* This macros allow wrapping variadic functions.
* Currently we don't care about floating point arguments and
* we assume that the standard calling conventions are used.
*
* The wrapper function has to star...
What is the difference between gmake and make?
...$@ $< = no input sources with gmake because $< evaluates to an empty string. Worse combinations exist that can result in gcc clobbering files).
– Sean
May 24 '11 at 19:27
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Call a global variable inside module
...oo if you want to go that far, for example declare var myFunction: (input: string) => void;
– Fenton
Mar 14 '18 at 11:20
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Spring classpath prefix difference
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The source code of Spring:
public Resource[] getResources(String locationPattern) throws IOException {
Assert.notNull(locationPattern, "Location pattern must not be null");
//CLASSPATH_ALL_URL_PREFIX="classpath*:"
if (locationPattern.startsWith(CLASSPATH_ALL_URL_PREFIX)) {
...
Is storing a delimited list in a database column really that bad?
...t fetching the whole list.
Can't store a list longer than what fits in the string column.
Hard to search for all entities with a given value in the list; you have to use an inefficient table-scan. May have to resort to regular expressions, for example in MySQL:
idlist REGEXP '[[:<:]]2[[:>:]]'*...