大约有 45,000 项符合查询结果（耗时：0.0630秒） [XML]
sed one-liner to convert all uppercase to lowercase?
...oned, BSD sed doesn't support it). Try reading the top line of man sed to know which version you're using.
– Ryder
Dec 8 '17 at 10:48
...
Enable Vim Syntax Highlighting By Default
I know how to turn syntax highlighting on and off in vim by running this in the editor:
6 Answers
...
Difference between case object and object
...between a standard Scala object and a case object is explained by what we know about the difference between standard classes and case classes. This answer doesn't even address the wording of the question.
– itsbruce
Jan 31 '17 at 13:50
...
Mongodb Explain for Aggregation framework
...gate(
[ ...your pipeline...],
{ explain: true }
)
Thanks to Rafa, I know that it was possible to do even in 2.4, but only through runCommand(). But now you can use aggregate as well.
share
|
i...
How do I get the entity that represents the current user in Symfony2?
I am using the Symfony security setup. Everything works fine, but I don't know how to do one important thing:
6 Answers
...
Targeting position:sticky elements that are currently in a 'stuck' state
position: sticky works on some mobile browsers now, so you can make a menu bar scroll with the page but then stick to the top of the viewport whenever the user scrolls past it.
...
What is the difference between JavaConverters and JavaConversions in Scala?
...For anyone landing on this question since Scala 2.12.x, JavaConversions is now deprecated and JavaConverters is the preferred method.
share
|
improve this answer
|
follow
...
What is JSONP, and why was it created?
...omething like this:
mycallback({ foo: 'bar' });
As you can see, it will now invoke the method you specified. So, in your page, you define the callback function:
mycallback = function(data){
alert(data.foo);
};
And now, when the script is loaded, it'll be evaluated, and your function will be ...
Handling optional parameters in javascript
...
You can know how many arguments were passed to your function and you can check if your second argument is a function or not:
function getData (id, parameters, callback) {
if (arguments.length == 2) { // if only two arguments were s...
In CMake, how can I test if the compiler is Clang?
...3.0.0 the CMAKE_<LANG>_COMPILER_ID value for Apple-provided Clang is now AppleClang. To test for both the Apple-provided Clang and the regular Clang use the following if condition:
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# using regular Clang or AppleClang
endif()
Also see the AppleClang...