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Is there a “null coalescing” operator in JavaScript?
...an results in false, the assignment will use the second operand. Beware of all the cases below:
alert(Boolean(null)); // false
alert(Boolean(undefined)); // false
alert(Boolean(0)); // false
alert(Boolean("")); // false
alert(Boolean("false")); // true -- gotcha! :)
This means:
var whatIWant = n...
Mercurial move changes to a new branch
...he comments to Mark's answer, moving around already pushed changesets generally is a bad idea, unless you work in a small team where you are able to communicate and enforce your history manipulation.
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Detect IF hovering over element with jQuery
I'm not looking for an action to call when hovering, but instead a way to tell if an element is being hovered over currently. For instance:
...
JPA: what is the proper pattern for iterating over large result sets?
...er way to iterate over a query against that table, such that I don't have all an in-memory List with millions of objects?
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Closing JDBC Connections in Pool
...
Yes, certainly you need to close the pooled connection as well. It's actually a wrapper around the actual connection. It wil under the covers release the actual connection back to the pool. It's further up to the pool to decide whether the actual connection will actually be closed or be reused for...
How to use sidebar with the keyboard in Sublime Text 2 and 3?
...ut for "Focus Group 1", but if you want to focus the group which was originally focused, use Esc instead (see the unofficial docs). For example, if group 2 is focused, and you then focus the side bar, Esc will return the focus to group 2.
– TachyonVortex
Dec 16...
Converting string to title case
...leCase(title);
Console.WriteLine(title) ; //War And Peace
//When text is ALL UPPERCASE...
title = "WAR AND PEACE" ;
title = textInfo.ToTitleCase(title);
Console.WriteLine(title) ; //WAR AND PEACE
//You need to call ToLower to make it work
title = textInfo.ToTitleCase(title.ToLower());
Console....
Replacing NAs with latest non-NA value
... Use na.locf(cz, na.rm=FALSE) to keep leading NA.
– BallpointBen
May 17 '18 at 16:21
1
@Ballpoint...
“unadd” a file to svn before commit
...Ok, I guess you and I understand this phrase differently: without deleting all the documents. Unfortunately, svn revert does also delete the newly added changes in the working copy, by restoring the lastest HEAD version. I removed my downvote, but I still feel the warning is important.
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How can I display just a portion of an image in HTML/CSS?
...ich has replaced the now-deprecated clip property.
The clip-path property allows a range of options (more-so than the original clip), of:
inset — rectangular/cuboid shapes, defined with four values as 'distance-from' (top right bottom left).
circle — circle(diameter at x-coordinate y-coordina...