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How can I dynamically create derived classes from a base class
...gt;> s2 = SpecialClass(d=3)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 8, in __init__
TypeError: Argument d not valid for SpecialClass
I see you are asking for inserting the dynamic names in the naming scope --
now, that is ...
How to use > in an xargs command?
...applies when you pipe find's output with xargs, right? when I do xargs -a <input_file> how would I use this? Most commands like grep outputs with \n and not \0. The only way I can think of to work around this is to use tr again to fix that perhaps. But why is it important to use it only with -...
vector::at vs. vector::operator[]
... C++ Vector at/[] operator speed or ::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! . I just don't understand what the at() method is good for.
...
jQuery vs document.querySelectorAll
...lar javascript .
However , as far as I know, you can achieve the same result with document.querySelector or document.querySelectorAll , which are supported in Internet Explorer 8 and above.
...
Variable declared in for-loop is local variable?
...e outside of the for loop.
As you can see both of these issues are a result of scoping; the first issue (int i = 4;) would result in two i variables within the for loop scope. Whereas int A = i; would result in access to a variable that is out of scope.
What you could do instead is declare i to b...
How do I create a pylintrc file
... pylint --generate-rcfile > .pylintrc and then make changes to the resulting .pylintrc file to override the default settings? And if so should it be in my ~/ directory or should I put it in .pylint.d?
...
How to avoid scientific notation for large numbers in JavaScript?
... your own, but it will be messy.
function toFixed(x) {
if (Math.abs(x) < 1.0) {
var e = parseInt(x.toString().split('e-')[1]);
if (e) {
x *= Math.pow(10,e-1);
x = '0.' + (new Array(e)).join('0') + x.toString().substring(2);
}
} else {
var e = parseInt(x.toStri...
How to create has_and_belongs_to_many associations in Factory girl
...xample:
user = Factory(:user)
company = Factory(:company)
company.users << user
company.save!
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Number of occurrences of a character in a string [duplicate]
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Why use regex for that. String implements IEnumerable<char>, so you can just use LINQ.
test.Count(c => c == '&')
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Sequelize, convert entity to plain object
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you can use the query options {raw: true} to return the raw result. Your query should like follows:
db.Sensors.findAll({
where: {
nodeid: node.nodeid
},
raw: true,
})
also if you have associations with include that gets flattened. So, we can use another parameter nest:true
d...