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Ruby: Calling class method from instance
In Ruby, how do you call a class method from one of that class's instances? Say I have
9 Answers
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Align elements side by side
I know this is a rather simple question, but I can't figure it out for the life of me. I have two links which I've applied a background image to. Here's what it currently looks like (apologies for the shadow, just a rough sketch of a button):
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How to strip all whitespace from string
...in a python string? For example, I want a string like strip my spaces to be turned into stripmyspaces , but I cannot seem to accomplish that with strip() :
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Is it not possible to stringify an Error using JSON.stringify?
...'m running into an issue when trying to pass error messages around using web sockets. I can replicate the issue I am facing using JSON.stringify to cater to a wider audience:
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python numpy ValueError: operands could not be broadcast together with shapes
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dot is matrix multiplication, but * does something else.
We have two arrays:
X, shape (97,2)
y, shape (2,1)
With Numpy arrays, the operation
X * y
is done element-wise, but one or both of the values can be expanded in one or more dimensions to mak...
Constructor of an abstract class in C#
Why is it possible to write constructor for an abstract class in C#?
As far as I know we can't instantiate an abstract class.. so what is it for?
You can't instantiate the class, right?
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jQuery document.createElement equivalent?
....$OuterDiv = $('<div></div>')
.hide()
.append($('<table></table>')
.attr({ cellSpacing : 0 })
.addClass("text")
)
;
Update: I thought I'd update this post since it still gets quite a bit of traffic. In the comments below there's some discussion...
Regular expression for exact match of a string
...or example I have two inputs "123456" and "1234567" then the result should be not match (false). And when I have entered "123456" and "123456" then the result should be match (true).
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how do I query sql for a latest record date for each user
I have a table that is a collection entries as to when a user was logged on.
22 Answers
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How do I do a bulk insert in mySQL using node.js
How would one do a bulk insert into mySQL if using something like
https://github.com/felixge/node-mysql
12 Answers
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