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“elseif” syntax in JavaScript
...e if you are actually omitting the optional block {...}. I was referencing based on EMCAScript and MDN..
– skube
Apr 21 '15 at 14:49
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Query to count the number of tables I have in MySQL
...t to do a quick command line query to count the number of tables in my database. Is that possible? If so, what is the query?
...
Get index of selected option with jQuery
...mj: Then you are doing something wrong. The selectedIndex property is zero based. I checked the documentation and even tried it myself to be truly 100% sure about this.
– Guffa
Mar 26 '16 at 23:24
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Difference between natural join and inner join
...t specify the joining columns in a natural join; the join is strictly name-based. See also Wikipedia.)
(There's a cheat in the inner join output; the a. and b. parts would not be in the column names; you'd just have column1, column2, column1, column3 as the headings.)
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Change Placeholder Text using jQuery
.... Use parseInt($(this).val(), 10) or check for '1'. The ten is to denote base 10.
$(function () {
$('input[placeholder], textarea[placeholder]').blur();
$('#serMemdd').change(function () {
var k = $(this).val();
if (k == '1') {
$("#serMemtb").attr("placeholder"...
Java `final` method: what does it promise?
...You can't override it in your derived class, therefore it will do what the base class author intended.
http://download.oracle.com/javase/tutorial/java/IandI/final.html
Worth noting is the part where it suggests that methods called from constructors should be final.
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Linq to Entities join vs groupjoin
... input sequence, found all the matching items from the "inner" sequence
(based on a key projection on each sequence) and then yielded pairs of
matching elements. GroupJoin is similar, except that instead of
yielding pairs of elements, it yields a single result for each "outer"
item based on ...
What is the reason for having '//' in Python? [duplicate]
...0.666666666667
As you see, single / may floor, or it may return a float, based on completely non-local issues, up to and including the value of the -Q flag...;-).
So, if and when you know you want flooring, always use //, which guarantees it. If and when you know you don't want flooring, slap a f...
Android Studio rendering problems
...in styles.xml file I changed
"Theme.AppCompat.Light.DarkActionBar"
to
"Base.Theme.AppCompat.Light.DarkActionBar"
It's some kind of hack I came across a long time ago to solve similar rendering problems in previous Android Studio versions.
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Storing time-series data, relational or non?
...n is never a Key (duplicate rows, which are prohibited in a Relational database, must be prevented by other means).
The Id column requires an additional Index, which obviously impedes the speed of INSERT/DELETE, and adds to the disk space used.
You can get rid of it. Please.
Elevation
Now ...