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classical inheritance vs prototypal inheritance in javascript
...ed in your question make use of prototypal inheritance. In fact any object-oriented code you write in JavaScript is a paradigm of prototypal inheritance. JavaScript simply doesn't have classical inheritance. This should clear things up a bit:
Inheritance
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Is log(n!) = Θ(n·log(n))?
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This is a very nice proof for the upper bound: log(n!) = log(1) + ... + log(n) <= n log(n) => log(n!) = O(n log n). However, for proving the lower bound (and consequently big-tetha), you'll probably need Stirling's Approximation.
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Token Authentication for RESTful API: should the token be periodically changed?
I'm building a RESTful API with Django and django-rest-framework .
9 Answers
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What is “X-Content-Type-Options=nosniff”?
...g some penetration testing on my localhost with OWASP ZAP, and it keeps reporting this message:
5 Answers
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Why can't C++ be parsed with a LR(1) parser?
I was reading about parsers and parser generators and found this statement in wikipedia's LR parsing -page:
6 Answers
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How can I find the first occurrence of a sub-string in a python string?
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what if I want to find the word is from the sentence this is a cool dude ? I tried the find method but it returns index 2 instead of 5. How do i achieve this using find() ?
– Regressor
Apr 12 at 23:09
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Installing PDO driver on MySQL Linux server
I was suggested, not long ago, to change my code to use PDO in order to parameterize my queries and safely save HTML in the database.
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How to get the build/version number of your Android application?
I need to figure out how to get or make a build number for my Android application. I need the build number to display in the UI.
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Cosmic Rays: what is the probability they will affect a program?
...uggest that computers typically experience about one cosmic-ray-induced error per 256 megabytes of RAM per month.[15]
This means a probability of 3.7 × 10-9 per byte per month, or 1.4 × 10-15 per byte per second. If your program runs for 1 minute and occupies 20 MB of RAM, then the failure proba...
if/else in a list comprehension
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You can totally do that. It's just an ordering issue:
[unicode(x.strip()) if x is not None else '' for x in row]
In general,
[f(x) if condition else g(x) for x in sequence]
And, for list comprehensions with if conditions only,
[f(x) for x in sequence if co...