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How to make an array of arrays in Java
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155
Like this:
String[][] arrays = { array1, array2, array3, array4, array5 };
or
String[][] a...
How to generate random number with the specific length in python
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189
To get a random 3-digit number:
from random import randint
randint(100, 999) # randint is in...
How do you know when to use fold-left and when to use fold-right?
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105
You can transfer a fold into an infix operator notation (writing in between):
This example fo...
Trying to understand CMTime and CMTimeMake
1) CMTimeMake(1,10) means duration of 1 second and timescale of 10, or 10 frames per second. This means 1s duration of video with 10 frames?
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How to trim white spaces of array values in php
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12 Answers
12
Active
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Check if a string contains one of 10 characters
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213
The following would be the simplest method, in my view:
var match = str.IndexOfAny(new char[] ...
Patterns for handling batch operations in REST web services?
...xample, to delete several messages at once.
DELETE /mail?&id=0&id=1&id=2
It's a little more complicated to batch update partial resources, or resource attributes. That is, update each markedAsRead attribute. Basically, instead of treating the attribute as part of each resource, you tr...
Stack smashing detected
...following snippet:
#include <stdio.h>
void func()
{
char array[10];
gets(array);
}
int main(int argc, char **argv)
{
func();
}
The compiler, (in this case gcc) adds protection variables (called canaries) which have known values. An input string of size greater than 10 causes c...
Blocks on Swift (animateWithDuration:animations:completion:)
...es:
UIView.animateWithDuration(0.2, animations: {
self.blurBg.alpha = 1
}, completion: {
(value: Bool) in
self.blurBg.hidden = true
})
The important part here is the (value: Bool) in. That tells the compiler that this closure takes a Bool labeled 'value' and returns void.
For referen...