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Why does ConcurrentHashMap prevent null keys and values?
...and get calls, causing this snippet to return a null that was never in the table, rather than the desired KeyNotPresentException.
Normally you would solve that by synchronizing, but with a concurrent map that of course won't work. Hence the signature for get had to change, and the only way to do th...
Vertical line using XML drawable
...more complex view that I want to use as a drawable for the background of a table cell. There are different types of shapes/gradients/lines there. Using a view WOULD be a solution, however I would have to put it in a different drawing "layer" and that is potentially shooting yourself in the foot when...
Prevent nginx 504 Gateway timeout using PHP set_time_limit()
... attempts to make a connection to a database and then creates many initial tables and fills it with data .. that could take quite some time before a response.
– imme
Nov 20 '17 at 18:11
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How do I get a div to float to the bottom of its container?
...
position absolute was mentioned as unacceptable solution, unfortunately
– Vitaly
Dec 17 '13 at 4:42
2
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How does this print “hello world”?
...binary representations for the lowercase
alphabet letters in the following table:
ascii | ascii | ascii | algorithm
character | decimal value | binary value | 5-bit codification
--------------------------------------------------------------
space | 32 | 01000...
Div height 100% and expands to fit content
...g with the pseudo selector :after
.clearfix:after {
content: "";
display: table;
clear: both;
}
Then, in your HTML, add the .clearfix class to your parent Div. For example:
<div class="clearfix">
<div></div>
<div></div>
</div>
It should work always. ...
COALESCE Function in TSQL
...
declare @store table (store_id varchar(300))
insert into @store
values ('aa'),('bb'),('cc')
declare @str varchar (4000)
select @str = concat(@str+',',store_id) from @store
select @str
...
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]
... me set an animated flag on my custom view as well. Handy for use within a table view cell (where cell reuse can lead to some trippy animations while scrolling).
– Joe D'Andrea
Sep 12 '11 at 13:51
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How to dynamically create CSS class in JavaScript and apply?
... dynamically in JavaScript and assign it to some HTML elements like - div, table, span, tr, etc and to some controls like asp:Textbox, Dropdownlist and datalist.
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Generate a UUID on iOS from Swift
...iOS Swift app I want to generate random UUID ( GUID ) strings for use as a table key, and this snippet appears to work:
6...