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What exactly are iterator, iterable, and iteration?
...ich defines a __getitem__ method that can take sequential indexes starting from zero (and raises an IndexError when the indexes are no longer valid). So an iterable is an object that you can get an iterator from.
An iterator is an object with a next (Python 2) or __next__ (Python 3) method.
Whene...
Staging Deleted files
...ions.
Git 2.0.0 Docs - git-add
< pathspec >…
Files to add content from. Fileglobs (e.g. *.c) can be given to add all
matching files. Also a leading directory name (e.g. dir to add dir/file1 and dir/file2) can be given to update the index to match the current state of the directory as a whol...
What is the purpose of willSet and didSet in Swift?
... = 0 {
didSet {
print("The value of myProperty changed from \(oldValue) to \(myProperty)")
}
}
}
myProperty prints its old and new value every time it is modified. With just getters and setters, I would need this instead:
class Foo {
var myPropertyValue: Int = ...
How do Third-Party “tracking cookies” work?
...iframe src="http://websiteB.com/ad.html></iframe> to serve the ad from website B. Then when your browser goes to fetch http://websiteB.com/ad.html, the response will come back with a Set-Cookie header that sets a cookie with some unique random string. If website C also includes an ad from w...
Classes residing in App_Code is not accessible
...ass and put it inside of the App_Code folder. However I cannot access this from my other pages. Does something need to be configured to allow this? I have made it work in previous projects, but not in this one, somehow.
...
Why does printf not flush after the call unless a newline is in the format string?
...
fflush(stdout); // Will now print everything in the stdout buffer
Edit: From Andy Ross's comment below, you can also disable buffering on stdout by using setbuf:
setbuf(stdout, NULL);
or its secure version setvbuf as explained here
setvbuf(stdout, NULL, _IONBF, 0);
...
How can you hide database output in Rails console?
In newer version of Rails, I'm guessing from 3 up, database queries are output to the console. This is useful most of the time, but how can you hide it when you do not want to see it?
...
Strip all non-numeric characters from string in JavaScript
...r a non-DOM scenario where you'd want to remove all non-numeric characters from a string using JavaScript/ECMAScript. Any characters that are in range 0 - 9 should be kept.
...
How to create hyperlink to call phone number on mobile devices?
...l include them.
Since we never know where our website visitors are coming from, we need to make phone numbers callable from anywhere in the world. For this reason the + sign is always necessary. The + sign is automatically converted by your mobile carrier to your international dialing prefix, also ...
How to call one shell script from another shell script?
...script in the first script's process, and pulls in variables and functions from the other script so they are usable from the calling script.
In the second method, if you are using exit in second script, it will exit the first script as well. Which will not happen in first and third methods.
...