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Formatting a number with exactly two decimals in JavaScript
... my numbers to two decimal places. But I get numbers like this: 10.8, 2.4, etc. These are not my idea of two decimal places so how I can improve the following?
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What are the benefits of Java's types erasure?
... optimisations on the code - make it run faster, generate a smaller binary etc. Erasure of type parameters facilitates this.
Java breaks static typing by allowing type information to be queried at runtime - reflection, instanceof etc. This allows you to construct programs that cannot be statically ...
Delete text in between HTML tags in vim?
...y repeated at (or it) to progressively select surrounding tags . (Or v2at, etc). Then d to delete (etc).
– Joe Freeman
Feb 16 '17 at 17:09
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Java switch statement multiple cases
...d I do this all the time:
switch (variable)
{
case 5:
case 6:
etc.
case 100:
doSomething();
break;
}
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What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate]
... is the top middle picture not SELECT * FROM A INTERSECT SELECT * FROM B ? etc
– onedaywhen
Sep 9 '11 at 10:41
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Factory Pattern. When to use factory methods?
...one, you need to know a lot of stuff - benefits, eligibility verification, etc. But the person hiring doesn't need to know any of this - the hiring agency handles all of that.
In the same way, using a Factory allows the consumer to create new objects without having to know the details of how they...
How to negate the whole regex?
...tch. Some flavor supports assertions; some puts limitations on lookbehind, etc.
Links to regular-expressions.info
Lookahead and Lookbehind Zero-Width Assertions
Flavor comparison
See also
How do I convert CamelCase into human-readable names in Java?
Regex for all strings not containing a stri...
How can I increment a char?
...
I came from PHP, where you can increment char (A to B, Z to AA, AA to AB etc.) using ++ operator. I made a simple function which does the same in Python. You can also change list of chars to whatever (lowercase, uppercase, etc.) is your need.
# Increment char (a -> b, az -> ba)
def inc_char...
Best practices for in-app database migration for Sqlite
... necessary to go from version 1 to version 2, then version 2 to version 3, etc... until it is up to date. An easy way to do this is to have a switch statement where each "case" statement updates the database by one version. You "switch" to the current database version, and the case statements fall...
Removing duplicates from a list of lists
...e quadratic approach isn't bad, but the sort and groupby ones are better. Etc, etc.
If (as the obsession with performance suggests) this operation is at a core inner loop of your pushing-the-boundaries application, it's worth trying the same set of tests on other representative input samples, poss...