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How to get the first word of a sentence in PHP?
...sis for at least 6 years and I didn't ever heard about this function until now
– Epoc
Dec 7 '17 at 14:21
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Spring Test & Security: How to mock authentication?
...t(
basicActiveUser, managerActiveUser
));
}
}
Now we have our users ready, so imagine we want to test the access control to this controller function:
@RestController
@RequestMapping("/foo")
public class FooController {
@Secured("ROLE_MANAGER")
@GetMapping("/salu...
jQuery object equality
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If you still don't know, you can get back the original object by:
alert($("#deviceTypeRoot")[0] == $("#deviceTypeRoot")[0]); //True
alert($("#deviceTypeRoot")[0] === $("#deviceTypeRoot")[0]);//True
because $("#deviceTypeRoot") also returns an...
Binding multiple events to a listener (without JQuery)?
...ng the same listener for multiple events on the one element is more common now to cover the various interface types in use, and Isaac's answer offers a good use of built–in methods to reduce the code (though less code is, of itself, not necessarily a bonus). Extended with ECMAScript 2015 arrow fun...
Best way to handle list.index(might-not-exist) in python?
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I know it can only be thrown from that method but is it guaranteed to only be thrown for that reason? Not that I can think of another reason index would fail..but then aren't exceptions for exactly those things you may not think...
MySQL - Make an existing Field Unique
...eady existing table with a field that should be unique but is not. I only know this because an entry was made into the table that had the same value as another, already existing, entry and this caused problems.
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PHP: How to check if image file exists?
...if it is a file then you should use is_file together with file_exists to know if there is really a file behind the path, otherwise file_exists will return true for any existing path.
Here is the function i use :
function fileExists($filePath)
{
return is_file($filePath) && file_...
Selecting only numeric columns from a data frame
...de
## nums <- sapply(x, is.numeric)
For a more idiomatic modern R I'd now recommend
x[ , purrr::map_lgl(x, is.numeric)]
Less codey, less reflecting R's particular quirks, and more straightforward, and robust to use on database-back-ended tibbles:
dplyr::select_if(x, is.numeric)
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Changing element style attribute dynamically using JavaScript
I hav a certain style sheet for a div. Now i want to modify one attribute of div dynamically using js.
10 Answers
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In which language are the Java compiler and JVM written?
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@devdimi the link is broken and now resides at: stroustrup.com/applications.html
– flup
Jul 13 '13 at 11:25
1
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