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Tool to generate JSON schema from JSON data [closed]
...It is an online tool that can automatically generate JSON schema from JSON string. And you can edit the schema easily.
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Adjust width of input field to its input
... of the character "m". This would be useful for calculating the width of a string. I've seen cross-browser issues with em units applied to some attributes though so do test it.
– Archonic
Apr 4 '13 at 4:46
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scheduleAtFixedRate vs scheduleWithFixedDelay
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I could not understand the "extra" word mentioned in scheduleAtFixedRate time series diagram.
– MuneshSingh
Mar 25 '18 at 6:39
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How to convert TimeStamp to Date in Java?
...s").parse("01/01/1970 01:00:00").getTime() / 1000;
Or the opposite:
String date = new java.text.SimpleDateFormat("MM/dd/yyyy HH:mm:ss").format(new java.util.Date (epoch*1000));
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How to vertically center divs? [duplicate]
...ng with a 'display: inline-box'. The line-height of the contents can cause extra space below the inline-box, and the result is that the child is aligned slightly above centre. I am not sure what part of the html spec causes this, but I found it to be unobvious and it took a while to work out the rea...
Django class-based view: How do I pass additional parameters to the as_view method?
...m urls.py
https://docs.djangoproject.com/en/1.7/topics/http/urls/#passing-extra-options-to-view-functions
This also works for generic views. Example:
url(r'^$', views.SectionView.as_view(), { 'pk': 'homepage', 'another_param':'?'}, name='main_page'),
In this case the parameters passed to the vi...
How do I call ::std::make_shared on a class with only protected or private constructors?
...and doesn't require a derived class:
#include <memory>
#include <string>
class A {
protected:
struct this_is_private;
public:
explicit A(const this_is_private &) {}
A(const this_is_private &, ::std::string, int) {}
template <typename... T>
static ::std:...
C++ preprocessor __VA_ARGS__ number of arguments
...GS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
#define SUM(...) (sum(NUMARGS(__VA_ARGS__), __VA_ARGS__))
void sum(int numargs, ...);
int main(int argc, char *argv[]...
Add only non-whitespace changes
...l - its only special characters are ", \, \n, and ; (outside of a "-quoted string). This is why a " must always be escaped, even if it looks like it's inside a single-quoted string (which git is completely agnostic about).
This is important, eg. if you have a handy alias to execute a bash command i...
Counting DISTINCT over multiple columns
... the columns, then get the distinct count of instances of the concatenated string.
SELECT count(DISTINCT concat(DocumentId, DocumentSessionId)) FROM DocumentOutputItems;
In MySQL you can do the same thing without the concatenation step as follows:
SELECT count(DISTINCT DocumentId, DocumentSessio...