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Const in JavaScript: when to use it and is it necessary?
...ehaviour is only applicable to Strings, Basic Types. Using Objects, Arrays etc. it is possible to change the values but it is not possible to re-assign an new "Object", e.g. const a = ["a","b"]; a = []; will throw an error otherwise it is possible
– Fer To
Feb ...
Difference between . and : in Lua
...nly once. In this case, there's a clear difference between obj.method(obj, etc) and obj:method(etc).
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
...t.
body {
background: black;
}
.comment {
width: 470px;
border-bottom: 1px dotted #f0f0f0;
margin-bottom: 10px;
}
.comment:last-of-type {
border-bottom: none;
margin-bottom: 0;
}
<div class="commentList">
<article class="comment " id="com21"></artic...
How can I increment a char?
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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...
Building a minimal plugin architecture in Python
...command-line tool? A set of scripts? A program with an unique entry point, etc...
Given the little information I have, I will answer in a very generic manner.
What means do you have to add plugins?
You will probably have to add a configuration file, which will list the paths/directories to load...
Named routes _path vs _url
...
As the other answers explain, you should use _url in email links, etc.
But I would like to add that you should also use _url in redirects, as explained here:
https://www.ruby-forum.com/topic/101346#221052
and, here:
http://viget.com/extend/rails-named-routes-path-vs-url
You can also t...
HashMap get/put complexity
...e.
In JDK 8, HashMap has been tweaked so that if keys can be compared for ordering, then any densely-populated bucket is implemented as a tree, so that even if there are lots of entries with the same hash code, the complexity is O(log n). That can cause issues if you have a key type where equality ...
Excel to CSV with UTF8 encoding [closed]
I have an Excel file that has some Spanish characters (tildes, etc.) that I need to convert to a CSV file to use as an import file. However, when I do Save As CSV it mangles the "special" Spanish characters that aren't ASCII characters. It also seems to do this with the left and right quotes and l...
How to delete an old/unused Data Model Version in Xcode
...7.xcdatamodel". I wanted to delete 38. On import, it was pulled in lexical order, meaning "MY_APP 10.xcdatamodel" was first, and selected as the default. Not ideal in my case.
– Mike
Nov 16 '12 at 5:46
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What is meant by “managed” vs “unmanaged” resources in .NET?
... Adding a bit more clarification: SqlConnection (or FileStream, etc) are managed resources which internally use unmanaged resources which GC is unaware of.
– jimvfr
Jan 17 '13 at 2:21
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