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How do I draw a shadow under a UIView?
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Sadly, I think CGColor is out of reach from the storyboard :(
– Antzi
Aug 7 '14 at 15:01
1
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How to un-commit last un-pushed git commit without losing the changes
...will be in your working directory, whereas the LAST commit will be removed from your current branch. See git reset man
In case you did push publicly (on a branch called 'master'):
git checkout -b MyCommit //save your commit in a separate branch just in case (so you don't have to dig it from refl...
hash function for string
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There are a number of existing hashtable implementations for C, from the C standard library hcreate/hdestroy/hsearch, to those in the APR and glib, which also provide prebuilt hash functions. I'd highly recommend using those rather than inventing your own hashtable or hash function; they'...
Where does 'Hello world' come from?
...or any programming language. I've always wondered where this sentence came from and where was it first used.
7 Answers
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How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
...ern void foo(char* m);
int main() {
// warning: deprecated conversion from string constant to ‘char*’
//foo("Hello");
// no more warning
char msg[] = "Hello";
foo(msg);
}
Is this an appropriate way of solving this? I do not have access to foo to adapt it to accept const c...
Is there an “exists” function for jQuery?
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In my opinion, it's at least one logical indirection from the concept of "a list length that is greater than zero" to the concept of "the element(s) I wrote a selector for exist". Yeah, they're the same thing technically, but the conceptual abstraction is at a different level. ...
Python threading.timer - repeat function every 'n' seconds
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From Equivalent of setInterval in python:
import threading
def setInterval(interval):
def decorator(function):
def wrapper(*args, **kwargs):
stopped = threading.Event()
def loop(): # exe...
Splitting a list into N parts of approximately equal length
...her than chunks of n:
def chunks(l, n):
""" Yield n successive chunks from l.
"""
newn = int(len(l) / n)
for i in xrange(0, n-1):
yield l[i*newn:i*newn+newn]
yield l[n*newn-newn:]
l = range(56)
three_chunks = chunks (l, 3)
print three_chunks.next()
print three_chunks.ne...
How do I shuffle an array in Swift?
...
let x = [1, 2, 3].shuffled()
// x == [2, 3, 1]
let fiveStrings = stride(from: 0, through: 100, by: 5).map(String.init).shuffled()
// fiveStrings == ["20", "45", "70", "30", ...]
var numbers = [1, 2, 3, 4]
numbers.shuffle()
// numbers == [3, 2, 1, 4]
Swift 4.0 and 4.1
These extensions add a sh...
Why is isNaN(null) == false in JS?
...s question, but semantically it's referring specifically to the value NaN. From Wikipedia for NaN:
NaN (Not a Number) is a value of the numeric data type representing an undefined or unrepresentable value, especially in floating-point calculations.
In most cases we think the answer to "is nul...