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Passing arguments forward to another javascript function
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@Brett - You can copy it into an array then manipulate that before passing it along, for example: var copy = [].slice.call(arguments); <remove what you want> myFunc.apply(this, copy);
– Nick Craver♦
Feb 17 '12 a...
Reading binary file and looping over each byte
...ime and if you need performance.
mmap allows you to treat a file as a bytearray and a file object simultaneously. It can serve as an alternative to loading the whole file in memory if you need access both interfaces. In particular, you can iterate one byte at a time over a memory-mapped file just u...
Using -performSelector: vs. just calling the method
...ctor withObject:(id)anArgument afterDelay:(NSTimeInterval)delay inModes:(NSArray *)modes;
- (void)performSelector:(SEL)aSelector withObject:(id)anArgument afterDelay:(NSTimeInterval)delay;
- (void)performSelector:(SEL)aSelector target:(id)target argument:(id)arg order:(NSUInteger)order modes:(NSArra...
Efficiency of purely functional programming
...an be intuitively explained very easily by looking at an implementation of arrays in a pure language (it costs lg(n) per operation (and you get history)).
– user51568
May 23 '10 at 12:36
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What is the difference between null and undefined in JavaScript?
..., but it is not so. What this operation does is remove a subscript from an Array or a member from an Object. For Arrays it does not effect the length, but rather that subscript is now considered undefined.
var a = [ 'a', 'b', 'c' ];
delete a[1];
for (var i = 0; i < a.length; i++)
WScript.Echo((i...
What is a “thread” (really)?
...the computations.
EDIT: (Computations like adding two numbers, sorting an array, basically executing the code that has been written)
Now moving on to the definition of a thread.
A thread is a basic unit of CPU utilization; it comprises a thread ID, a program
counter, a register set, and a ...
How do I convert between big-endian and little-endian values in C++?
... @MihaiTodor: This use of unions for typecasting through an array of chars is explicitly allowed by the standard. See eg. this question.
– Alexandre C.
May 4 '14 at 12:36
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How to print Boolean flag in NSLog?
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NSArray *array1 = [NSArray arrayWithObjects:@"todd1", @"todd2", @"todd3", nil];
bool objectMembership = [array1 containsObject:@"todd1"];
NSLog(@"%d",objectMembership); // prints 1 or 0
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Calculating frames per second in a game
...int ticksum=0;
int ticklist[MAXSAMPLES];
/* need to zero out the ticklist array before starting */
/* average will ramp up until the buffer is full */
/* returns average ticks per frame over the MAXSAMPLES last frames */
double CalcAverageTick(int newtick)
{
ticksum-=ticklist[tickindex]; /* s...
Understanding MongoDB BSON Document size limit
... now, as most embedded documents will now cross the limit easily. Esp with array of documents inside them
– Sharjeel Ahmed
Feb 15 '16 at 8:43
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