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Detect when an image fails to load in Javascript
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You could try the following code. I can't vouch for browser compatibility though, so you'll have to test that.
function testImage(URL) {
var tester=new Image();
tester.onload=imageFound;
tester.onerror=imageNotFound;
tester.src=URL;
}
function imageFound() {
alert('That im...
OAuth secrets in mobile apps
...n your data base or on the file system, but what is the best way to handle it in a mobile app (or a desktop app for that matter)?
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How do I use extern to share variables between source files?
...yword. What is an extern variable? What is the declaration like? What is its scope?
17 Answers
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Prevent HTML5 video from being downloaded (right-click saved)?
... that's what browsers were designed to do: Serve content. But you can make it harder to download.
First thing's first, you could disable the contextmenu event, aka "the right click". That would prevent your regular skiddie from blatantly ripping your video by right clicking and Save As. But then th...
Initialize class fields in constructor or at declaration?
...ming in C# and Java recently and I am curious where the best place is to initialize my class fields.
15 Answers
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Connect Java to a MySQL database
... a fairly old way of doing things. The better way is to get a DataSource, either by looking one up that your app server container already configured for you:
Context context = new InitialContext();
DataSource dataSource = (DataSource) context.lookup("java:comp/env/jdbc/myDB");
or instantiating an...
How to estimate a programming task if you have no experience in it [closed]
I am having a difficult time with management asking for estimates on programming tasks that are using third-party controls that I have no prior experience with.
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Should a “static final Logger” be declared in UPPER-CASE?
... if somebody still care about this problem, please share ideas at github.com/checkstyle/checkstyle/issues/23, to distinguish where demand upper case and where not.
– Roman Ivanov
Oct 18 '13 at 23:16
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Differences between dependencyManagement and dependencies in Maven
...yManagement and dependencies ?
I have seen the docs at Apache Maven web site.
It seems that a dependency defined under the dependencyManagement can be used in its child modules without specifying the version.
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Unit testing void methods?
What is the best way to unit test a method that doesn't return anything? Specifically in c#.
11 Answers
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