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Get loop count inside a Python FOR loop
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but how would it reset the the value for next iteration. Using itertools.count() is not feasible here.
– Javed
Oct 3 '17 at 7:40
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How do I expire a PHP session after 30 minutes?
...nt. So this doesn't help anything. In fact, having session.cookie_lifetime set to 0 would make the session’s cookie a real session cookie that is only valid until the browser is closed.
Conclusion / best solution:
The best solution is to implement a session timeout of your own. Use a simple time...
Why do you have to link the math library in C?
...ed libraries, and even when statically linking, the standard libraries are set up so that unused code can be discarded, so none of these are good reasons anymore.
– ephemient
Jun 23 '09 at 17:38
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Changing column names of a data frame
...etter
1 1 -2.440467
2 2 1.320113
3 3 -0.306639
You can also subset:
R> colnames(X)[2] <- "superduper"
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Str_replace for multiple items
I remember doing this before, but can't find the code. I use str_replace to replace one character like this: str_replace(':', ' ', $string); but I want to replace all the following characters \/:*?"<>| , without doing a str_replace for each.
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Sending a notification from a service in Android
...ication */);
PendingIntent pendingIntent = /* your intent */;
notification.setLatestEventInfo(this, /* your content */, pendingIntent);
notificationManager.notify(/* id */, notification);
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How to change a span to look like a pre with CSS?
...e W3C CSS2.1 Default Style Sheet or the CSS2.2 Working Draft. Copy all the settings for PRE and put them into your own class.
pre {
display: block;
unicode-bidi: embed;
font-family: monospace;
white-space: pre;
}
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Remove secure warnings (_CRT_SECURE_NO_WARNINGS) from projects by default in Visual Studio
Is there a way to set by default for all projects removing the precompiler secure warnings that come up when using functions like scanf(). I found that you can do it by adding a line in the project option or a #define _CRT_SECURE_NO_WARNINGS in the beginning of the code.
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Using regular expression in css?
...le way to select particular elements in css too...
#s1, #s2, #s3 {
// set css attributes here
}
if you only have a few elements to choose from, and dont want to bother with classes, this will work easily too.
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Turn a string into a valid filename?
I have a string that I want to use as a filename, so I want to remove all characters that wouldn't be allowed in filenames, using Python.
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