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What are the differences between the different saving methods in Hibernate?
...e
Calls either save or update depending on some checks. E.g. if no identifier exists, save is called. Otherwise update is called.
save
Persists an entity. Will assign an identifier if one doesn't exist. If one does, it's essentially doing an update. Returns the generated ID of the entity.
upd...
How to vertically center a container in Bootstrap?
...herefore we'd need to use some hacks/polyfills or different approaches for IE8/9.
In the following I'll show you how to do that in only 3 lines of text (regardless of old flexbox syntax).
Note: it's better to use an additional class instead of altering .jumbotron to achieve the vertical alignment....
WebSockets vs. Server-Sent events/EventSource
...able of pushing data to browsers. To me they seem to be competing technologies. What is the difference between them? When would you choose one over the other?
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How to make div background color transparent in CSS
...ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; /* IE 8 */
filter: alpha(opacity=50); /* IE 5-7 */
-moz-opacity: 0.5; /* Netscape */
-khtml-opacity: 0.5; /* Safari 1.x */
opacity: 0.5; /* Good browsers */
Note: these are NOT CSS3 properties
S...
Drawing a line/path on Google Maps
...ing out how to draw a line between two (GPS) points on the map in HelloMapView but with no luck.
13 Answers
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Will HTML5 allow web apps to make peer-to-peer HTTP connections?
.../2008/WD-html5-20080122/#network
Its important to note that the capabilities are still being negotiated. It will be nice to be able to create "local chat" web apps :)
jrh
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Convert blob URL to normal URL
...very interesting find. I'm not sure what's going on there. If I try to retrieve their src blob URL using an XMLHttpRequest, as described in this post, no content is returned. My guess is that either (a) they generated any empty Blob URL to use as a placeholder while feeding in data from another sour...
CSS Selector “(A or B) and C”?
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It is unreasonable to blame IE for not implementing something they simply never thought of and was not in any draft to begin with. :-moz-any() and :-webkit-any() showed up long before Mozilla suggested it for Selectors 4 (leading up to its current incar...
Create a Date with a set timezone without using a string representation
...S might apply the timezone offset again, giving you the wrong answer. I believe this is responsible for the confusion in these comments between +/-. Anyway, my downvote is for this fact and also for the "in most cases you get what you expect".
– metamatt
Aug 26...
How do I set a background-color for the width of text, not the width of the entire element, using CS
...the spread value to something larger than you'll need to use as I don't believe percentage values are accepted */
box-shadow: inset 0px 0px 0px 1000px green;
}
<h1>The First Will and Testament of Eric Jones</h1>
<h2>The 2nd Will and Testament of Eric Jones</h2>
<h3&...