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Removing duplicate objects with Underscore for Javascript
...t = [{a:1,b:5},{a:1,c:5},{a:2},{a:3},{a:4},{a:3},{a:2}];
var uniqueList = _.uniq(list, function(item, key, a) {
return item.a;
});
// uniqueList = [Object {a=1, b=5}, Object {a=2}, Object {a=3}, Object {a=4}]
Notes:
Callback return value used for comparison
First comparison object with un...
What are the sizes used for the iOS application splash screen?
I am developing an application using the iOS SDK. I need to know what Default splash screen sizes I need.
10 Answers
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Most efficient way to determine if a Lua table is empty (contains no entries)?
... the context of lua 5.2 & 5.3, is that non locals are either upvals or _ENV lookups. An upval has to go through an extra layer of indirection, whereas an _ENV lookup is a table lookup. Whereas a local is a register in the VM
– Demur Rumed
Jul 28 '17 at 0:30...
Difference between int32, int, int32_t, int8 and int8_t
I came across the data type int32_t in a C program recently. I know that it stores 32 bits, but don't int and int32 do the same?
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Capistrano error tar: This does not look like a tar archive
...
Second time i encounter your answer, second time this happened, i feel dumb!
– Fabian de Pabian
Mar 2 '15 at 10:49
11
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How can I expand the full path of the current file to pass to a command in Vim?
...ught me here, this should be the chosen answer.
– doc_id
Mar 2 '13 at 1:15
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warning: implicit declaration of function
...s to declare function prototype in header.
Example
main.h
#ifndef MAIN_H
#define MAIN_H
int some_main(const char *name);
#endif
main.c
#include "main.h"
int main()
{
some_main("Hello, World\n");
}
int some_main(const char *name)
{
printf("%s", name);
}
Alternative with one file...
How do I check for C++11 support?
...
There is a constant named __cplusplus that C++ compilers should set to the version of the C++ standard supported see this
#if __cplusplus <= 199711L
#error This library needs at least a C++11 compliant compiler
#endif
It is set to 199711L in V...
How to select an element by classname using jqLite?
I'm trying to remove jquery from my Angular.js app in order to make it lighter, and put Angular's jqLite instead. But the app makes heavy use of find('#id') and find ('.classname'), which are not supported by jqLite, only 'tag names' (as per documentation)
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Thread vs ThreadPool
...l functions under the hood
Creating a new thread yourself would be more appropriate if the job were going to be relatively long running (probably around a second or two, but it depends on the specific situation)
@Krzysztof - Thread Pool threads are background threads that will stop when the main...