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How to get the difference between two arrays in JavaScript?
... } else {
a[a2[i]] = true;
}
}
for (var k in a) {
diff.push(k);
}
return diff;
}
console.log(arr_diff(['a', 'b'], ['a', 'b', 'c', 'd']));
console.log(arr_diff("abcd", "abcde"));
console.log(arr_diff("zxc", "zxc"));
A better solutio...
How to solve Permission denied (publickey) error when using Git?
...
If the user has not generated a ssh public/private key pair set before
This info is working on theChaw but can be applied to all other git repositories which support SSH pubkey authentications. (See gitolite, gitlab or github for example.)
First start by setting up your ...
vim deleting backward tricks
...delete from current position to end of line
d^ will delete from current backward to first non-white-space character
d0 will delete from current backward to beginning of line
dw deletes current to end of current word (including trailing space)
db deletes current to beginning of current word
Read th...
How ViewBag in ASP.NET MVC works
How does the ASP.NET MVC's ViewBag work? MSDN says it is just an Object , which intrigues me, how does "Magic" properties such as ViewBag.Foo and magic strings ViewBag["Hello"] actually work?
...
Can I use a :before or :after pseudo-element on an input field?
...se the :after CSS pseudo-element on an input field, but it does not work. If I use it with a span , it works OK.
19 A...
How does Stack Overflow generate its SEO-friendly URLs?
...is a good complete regular expression or some other process that would take the title:
21 Answers
...
Convert a date format in PHP
...a date from yyyy-mm-dd to dd-mm-yyyy (but not in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string.
...
What's the scope of a variable initialized in an if statement?
...nnermost function, class, or module in which they're assigned. Control blocks like if and while blocks don't count, so a variable assigned inside an if is still scoped to a function, class, or module.
(Implicit functions defined by a generator expression or list/set/dict comprehension do count, as ...
Delete an element from a dictionary
...
The del statement removes an element:
del d[key]
However, this mutates the existing dictionary so the contents of the dictionary changes for anybody else who has a reference to the same instance. To return a new dictionary, make a copy of the dictionary:
def removek...
Generate random numbers with a given (numerical) distribution
...istribution object to generate random numbers.
As pointed out by Eugene Pakhomov in the comments, you can also pass a p keyword parameter to numpy.random.choice(), e.g.
numpy.random.choice(numpy.arange(1, 7), p=[0.1, 0.05, 0.05, 0.2, 0.4, 0.2])
If you are using Python 3.6 or above, you can use r...