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Build an iOS app without owning a mac? [closed]
...r virtual machine (the name is unimportant, I called it "Mac"). In "Type", select "Mac OS X" and in "Version" select "macOS 10.13 High Sierra (64 bit)" (the Mac version you will install on the virtual machine is actually Catalina, but VirtualBox doesn't have that option yet and it works just fine if...
Join/Where with LINQ and Lambda
...tabase.Post_Metas on post.ID equals meta.Post_ID
where post.ID == id
select new { Post = post, Meta = meta };
If you're really stuck on using lambdas though, your syntax is quite a bit off. Here's the same query, using the LINQ extension methods:
var id = 1;
var query = database.Posts //...
How can I send an inner to the bottom of its parent ?
...main sticking points: no set heights, must be completely fluid (not enough chars to explain why display: table was not working). This handled everything beautifully; the images inside the div are also flipped when this happens so I just used the class on those elements to flip them back. Looks exac...
jquery data selector
I need to select elements based on values stored in an element's .data() object. At a minimum, I'd like to select top-level data properties using selectors, perhaps like this:
...
Django: How do I add arbitrary html attributes to input fields on a form?
...$list.each(function () {
$(this).addClass('form-control')
});
var $select = $("#django_form select");
$select.each(function () {
$(this).addClass('custom-select w-90')
});
var $list = $("#django_form :input[type='number']");
$list.each(function () {
$(this).addClass('form-con...
Dialog to pick image from gallery or from camera
...hoto and for picking a photo. Just show a dialog with two options and upon selection, use the appropriate code.
To take picture from camera:
Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePicture, 0);//zero can be replaced with any action code (called ...
What is the easiest way to initialize a std::vector with hardcoded elements?
...typesafe, compile time constant
template <typename T, std::size_t N>
char (&sizeof_array( T(&)[N] ))[N]; // declared, undefined
#define ARRAY_SIZE(x) sizeof(sizeof_array(x))
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Table name as variable
...mpare data between the same tables of different databases:
static query:
SELECT * FROM [DB_ONE].[dbo].[ACTY]
EXCEPT
SELECT * FROM [DB_TWO].[dbo].[ACTY]
since I want easily change tha name of table and schema I have created this dynamic query:
declare @schema varchar(50)
declare @table varchar(5...
Difference between View and table in sql
...
A table contains data, a view is just a SELECT statement which has been saved in the database (more or less, depending on your database).
The advantage of a view is that it can join data from several tables thus creating a new view of it. Say you have a database w...
What is the difference between string primitives and String objects in JavaScript?
...plains the much faster random access speed.
So what happens when you do s.charAt(i) for instance?
Since s is not an instance of String, JavaScript will auto-box s, which has typeof string to its wrapper type, String, with typeof object or more precisely s.valueOf(s).prototype.toString.call = [obje...