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Does Python optimize tail recursion?
...ons.
The clean way: modifying the Y combinator
The Y combinator is well known; it allows to use lambda functions in a recursive
manner, but it doesn't allow by itself to embed recursive calls in a loop. Lambda
calculus alone can't do such a thing. A slight change in the Y combinator however
can pr...
How to use glOrtho() in OpenGL?
... and z are in [-1, +1]
ignore the z component and take only x and y, which now can be put into a 2D screen
With glOrtho, z is ignored, so you might as well always use 0.
One reason you might want to use z != 0 is to make sprites hide the background with the depth buffer.
Deprecation
glOrtho is ...
How can I debug git/git-shell related problems?
... This would be most useful as I have to resolve a key problem now, but it doesn't work for me with git 1.8.3.1 and OpenSSH_6.6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013 on CentOS Linux release 7.2.1511 (Core). :(
– Greg Dubicki
Jun 6 '16 at 12:37
...
Cross-browser testing: All major browsers on ONE machine
...f using Sandboxie to run IE7 and IE8 in the same VM, thanks for the guide! Now I don't have to run three separate VMs just to test in IE6-IE8.
– Phil
Jan 8 '13 at 3:56
...
How to iterate through all git branches using bash script
...is old, but the Git folks have finally addressed the problem: for-each-ref now supports all the branch selectors like --merged and git branch and git tag are now actually implemented in terms of git for-each-ref itself, at least for the list-existing cases. (Creating new branches and tags is not, an...
Python - Get path of root project structure
...path(__file__)) # This is your Project Root
Thus, with the Project Root known, you can create a variable that points to the location of the configuration (this can be defined anywhere, but a logical place would be to put it in a location where constants are defined - e.g. definitions.py):
CONFIG_...
classical inheritance vs prototypal inheritance in javascript
...rld entity (i.e. they represent real word things in the program). This is known as abstraction.
Abstraction: The representation of real world things in computer programs.
Theoretically an abstraction is defined as "a general concept formed by extracting common features from specific examples". How...
How do you test functions and closures for equality?
...as kind of devastating because I had been storing closures in an Array and now can't remove them with indexOf({$0 == closure} so I have to refactor. IMHO optimization shouldn't influence language design, so without a quick fix like the now deprecated @objc_block in matt's answer, I would argue that...
How to convert a number to string and vice versa in C++
... edited Feb 17 '15 at 17:34
KnowItAllWannabe
11k66 gold badges3838 silver badges8484 bronze badges
answered Jun 18 '12 at 19:36
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Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...e invoked if stepOne rejects (it's the first function in the chain, so we know that if the chain is rejected at this point, it can only be because of that function's promise).
The important change is that the error handlers for the other functions are not part of the main promise chain. Instead, ea...