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Remove duplicate values from JS array [duplicate]
...u will have to use libraries with similar functions (jQuery, underscore.js etc.)
– Roman Bataev
Feb 10 '12 at 15:26
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Is it bad practice to have a constructor function return a Promise?
...sts from directories, parsing them, sending them through template engines, etc.
4 Answers
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Why '&&' and not '&'?
...d the operator, i.e. & is implement to compute the bitwise logical AND etc.
For enumerations (chapter 7.11.2):
They are implemented to perform the logical operation of the underlying type of the enumeration.
For bools and nullable bools (chapter 7.11.3 and 7.11.4):
The result is not computed usi...
Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
...ng :after or :before styles using a different approach:
var str = window.getComputedStyle(document.querySelector('p'), ':before')
.getPropertyValue('content');
var str = window.getComputedStyle($('p')[0], ':before').getPropertyValue('content');
console.log(str);
document.sty...
What is the lifetime of a static variable in a C++ function?
...s can be avoided with a little policy. static/global objects (singletons, etc) shall not access other static objects in their method bodies. They shall only accessed in constructors where a reference/pointer can be stored for later access in methods. This is not perfect but should fix 99 of the c...
What does “program to interfaces, not implementations” mean?
...downside of the first approach?
There is the overhead of finding a company etc. Unless you are a rental car company, it may not be worth the effort.
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Is it safe to ignore the possibility of SHA collisions in practice?
... If you don't check for the possibility of an uncorrected error on every fetch from memory or read from disk (which have a far higher probability than an SHA-256 collision), you may not fully understand probabilities.
– Christophe
Oct 24 '15 at 18:46
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Difference between __str__ and __repr__?
...implementing a date/time abstraction, the str can be "2010/4/12 15:35:22", etc. The goal is to represent it in a way that a user, not a programmer, would want to read it. Chop off useless digits, pretend to be some other class — as long is it supports readability, it is an improvement.
Container...
How to overload functions in javascript?
...tion(first,second,third){ /* what we will do if 3 args passed? */});
//... etc :)
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Why is it bad style to `rescue Exception => e` in Ruby?
... - because the airbag didn't inflate, you're probably hurt (getting fired, etc).
But wait! There's more reasons why you might want to use rescue Exception => e!
Let's say you're that car, and you want to make sure the airbag inflates if the car is exceeding its safe stopping momentum.
begin
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