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How to check if an app is installed from a web-page on an iPhone?
...alueOf();
setTimeout(function () {
if (new Date().valueOf() - now > 100) return;
window.location = "https://itunes.apple.com/appdir";
}, 25);
window.location = "appname://";
That way, if there has been a freeze in code execution (i.e., app switching), it won't run.
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How to generate string of a certain length to insert into a file to meet a file size criteria?
... will automatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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How to check size of a file using Bash?
...n easier way to check for file sizes instead. I.e. file.txt is normally 100k; how to make a script check if it is less than 90k (including 0), and make it do wget a new copy because the file is corrupt in this case.
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How do I parse a string with a decimal point to a double?
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this code doesn't work for a number like 100.35 if the system culture uses a comma as the separator. you'd expect it to return a number of about 100, but it returns 10035.
– Lennart
Aug 6 at 11:31
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SQL - Select first 10 rows only?
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In SQL server, use:
select top 10 ...
e.g.
select top 100 * from myTable
select top 100 colA, colB from myTable
In MySQL, use:
select ... order by num desc limit 10
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How to scroll to bottom in a ScrollView on activity startup
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Instead post() use postDelayed() with 100ms delay. it will work from any activitys life-cycle point.
– Vitaliy A
Jun 3 '15 at 13:39
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R programming: How do I get Euler's number?
...emake()
e^10
exp(10)
# or even:
e <- sum(1/factorial(0:100))
fun stuff
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filter for complete cases in data.frame using dplyr (case-wise deletion)
...305 1.022891 1.013779 0.9948659 4.668691 20
# rowSums 2.281002 2.377807 2.420615 2.3467519 5.223077 20
# filter 1.000000 1.000000 1.000000 1.0000000 1.000000 20
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Gradient of n colors ranging from color 1 and color 2
...olor.gradient <- function(x, colors=c("red","yellow","green"), colsteps=100) {
return( colorRampPalette(colors) (colsteps) [ findInterval(x, seq(min(x),max(x), length.out=colsteps)) ] )
}
x <- c((1:100)^2, (100:1)^2)
plot(x,col=color.gradient(x), pch=19,cex=2)
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What is the point of noreturn?
...assignment below is not:
void raise();
void f(int y) {
int x = y!=0 ? 100/y : raise(); // raise() returns void, so what should x be?
cout << x << endl;
}
[[noreturn]], on the other hand, is called sometimes empty, Nothing, Bottom or Bot and is the logical equivalent of False. ...