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When should I use perror(“…”) and fprintf(stderr, “…”)?
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edited Aug 22 '16 at 20:11
Jonathan Lam
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an...
Having a UITextField in a UITableViewCell
...essoryType = UITableViewCellAccessoryNone;
if ([indexPath section] == 0) {
UITextField *playerTextField = [[UITextField alloc] initWithFrame:CGRectMake(110, 10, 185, 30)];
playerTextField.adjustsFontSizeToFitWidth = YES;
playerTextField.textColor = [UIColor blackColor];
...
Clearing all cookies with JavaScript
...ookies() {
var cookies = document.cookie.split(";");
for (var i = 0; i < cookies.length; i++) {
var cookie = cookies[i];
var eqPos = cookie.indexOf("=");
var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
document.cookie = name + "=;expires=Thu, ...
How to force R to use a specified factor level as reference in a regression?
... the relevel() function. Here is an example:
set.seed(123)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
head(DF)
str(DF)
m1 <- lm(y ~ x + b, data = DF)
summary(m1)
Now alter the factor b in DF by use of th...
Is there a way to programmatically scroll a scroll view to a specific edit text?
...e
public void run() {
your_scrollview.scrollTo(0, your_EditBox.getBottom());
}
});
}
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Difference between size_t and std::size_t
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90
C's size_t and C++'s std::size_t are both same.
In C, it's defined in <stddef.h> and in ...
Java HashMap performance optimization / alternative
...ted out the hashCode() method was to blame. It was only generating around 20,000 codes for 26 million distinct objects. That is an average of 1,300 objects per hash bucket = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get a unique hash code for every o...
How to git-svn clone the last n revisions from a Subversion repository?
... start your clone at ( -r$REV:HEAD).
For example: git svn clone -s -r1450:HEAD some/svn/repo
Git's data structure is based on pointers in a directed acyclic graph (DAG), which makes it trivial to walk back n commits. But in SVN ( and therefore in Git-SVN) you will have to find the revision num...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
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80
Well considering there's no overhead difference between a varchar(30) and a varchar(100) if you'...
Why does sys.exit() not exit when called inside a thread in Python?
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edited Dec 10 '19 at 22:37
Richard
40.9k2222 gold badges134134 silver badges203203 bronze badges
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