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Constructors in JavaScript objects
...type.getColor = function()
{
return this.color;
};
Hiding "color" (somewhat resembles a private member variable):
function Box(col)
{
var color = col;
this.getColor = function()
{
return color;
};
}
Usage:
var blueBox = new Box("blue");
alert(blueBox.getColor()); // wil...
Android Paint: .measureText() vs .getTextBounds()
I'm measuring text using Paint.getTextBounds() , since I'm interested in getting both the height and width of the text to be rendered. However, the actual text rendered is always a bit wider than the .width() of the Rect information filled by getTextBounds() .
...
How to print the full traceback without halting the program?
...ere are tons of errors this file encounters through bad links, poorly formed XML, missing entries, and other things I've yet to categorize. I initially made this program to handle errors like this:
...
Why aren't superclass __init__ methods automatically invoked?
Why did the Python designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following?
...
Android customized button; changing text color
...
Note that (for me, at least) there is a bug where the "normal" state (<item android:color="#ffffff" /> in your answer) must be placed at the end of the file as in your answer. Placing the normal state at the top of the file (above th...
Do Git tags only apply to the current branch?
...You can also just refer to the other branch while tagging,
git tag v1.0 name_of_other_branch
which will create the tag to the most recent commit of the other branch.
Or you can just put the tag anywhere, no matter which branch, by directly referencing to the SHA1 of some commit
git tag v1.0 <...
How to achieve function overloading in C?
...
There are few possibilities:
printf style functions (type as an argument)
opengl style functions (type in function name)
c subset of c++ (if You can use a c++ compiler)
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What's the difference between git reflog and log?
...ancestry, by recursively looking up each commit's parent.
(In practice, some commits have more than one parent. To see a more representative log, use a command like git log --oneline --graph --decorate.)
git reflog doesn't traverse HEAD's ancestry at all. The reflog is an ordered list of the commi...
Query for array elements inside JSON type
... json column called data in a table called reports . The JSON looks something like this:
3 Answers
...
What is the difference between a var and val definition in Scala?
..., if an object doesn't change internal state, you don't have to worry if some other part of your code is changing it. For example:
x = new B(0)
f(x)
if (x.value.value == 0)
println("f didn't do anything to x")
else
println("f did something to x")
This becomes particularly important with multi...