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Why is it necessary to set the prototype constructor?
...ed it was correctly wired up.
Of course, with ES2015 (aka ES6)'s class keyword, most of the time we would have used it, we don't have to anymore, because it's handled for us when we do
class Student extends Person {
}
¹ "...if you're subclassing something that uses it (like Promise or Array) ...
How to return a string value from a Bash function
...control variable in a for loop has the nameref attribute, the list
of words can be a list of shell variables, and a name reference will be⋅
established for each word in the list, in turn, when the loop is executed.
Array variables cannot be given the -n attribute. However, nameref ...
git stash blunder: git stash pop and ended up with merge conflicts
... opinion. Consider editing your answer to put it up front along with a the words DON'T PANIC in large, friendly letters. (+1 already though.) Thanks.
– Patrick M
Jan 28 '16 at 20:34
...
What are the use cases for selecting CHAR over VARCHAR in SQL?
...l data. So (assuming you are using a one-byte character set) storing the word "FooBar"
CHAR(6) = 6 bytes (no overhead)
VARCHAR(100) = 8 bytes (2 bytes of overhead)
CHAR(10) = 10 bytes (4 bytes of waste)
The bottom line is CHAR can be faster and more space-efficient for data of relatively the sam...
How much is the overhead of smart pointers compared to normal pointers in C++?
... overhead of smart pointers compared to normal pointers in C++11? In other words, is my code going to be slower if I use smart pointers, and if so, how much slower?
...
CROSS JOIN vs INNER JOIN in SQL
...IN returns the Cartesian product of rows from tables in the join. In other words, it will produce rows which combine each row from the first table with each row from the second table.
Inner join
[...] The result of the join can be defined as the outcome of first taking the Cartesian pr...
What is the meaning of the term arena in relation to memory?
...g concept. In one of the later chapters, the author makes heavy use of the word arena , but never defines it. I've searched for the meaning of the word and how it relates to memory, and found nothing. Here are a few contexts in which the author uses the term:
...
In which order should floats be added to get the most precise result?
...), -ffast-math is reasonable to use. Thus, I'd like to ammend my strongly worded "banned" comment.
– Chris A.
Jul 15 '11 at 16:48
...
What do “branch”, “tag” and “trunk” mean in Subversion repositories?
I've seen these words a lot around Subversion (and I guess general repository) discussions.
I have been using SVN for my projects for the last few years, but I've never grasped the complete concept of these directories.
...
Explain how finding cycle start node in cycle linked list work?
...t http://en.wikipedia.org/wiki/Cycle_detection#Tortoise_and_hare in my own words.
How it works
Let's have a tortoise and a hare (name of the pointers) pointing to the beginning of the list with a cycle, as in the diagram above.
Let's hypothesize that if we move tortoise 1 step at a time, and h...