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How to clear Facebook Sharer cache?
...L of the page you want to share, and click "debug". It will automatically extract all the info on your meta tags and also clear the cache.
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follo...
Local dependency in package.json
...pm >= 2.0.0
This feature was implemented in the version 2.0.0 of npm. Example:
{
"name": "baz",
"dependencies": {
"bar": "file:../foo/bar"
}
}
Any of the following paths are also valid:
../foo/bar
~/foo/bar
./foo/bar
/foo/bar
The local package will be copied to the prefix (./node...
Finding the type of an object in C++
... type that is not a type of actual object, the cast will throw a bad_cast exception.
Make sure there is at least one virtual function in Base class to make dynamic_cast work.
Wikipedia topic Run-time type information
RTTI is available only for classes that are polymorphic, which means
they have at ...
Regex lookahead, lookbehind and atomic groups
I found these things in my regex body but I haven't got a clue what I can use them for.
Does somebody have examples so I can try to understand how they work?
...
Ajax success event not working
I have a registration form and am using $.ajax to submit it.
16 Answers
16
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Downloading an entire S3 bucket?
...:
aws s3 sync s3://<source_bucket> <local_destination>
For example:
aws s3 sync s3://mybucket .
will download all the objects in mybucket to the current directory.
And will output:
download: s3://mybucket/test.txt to test.txt
download: s3://mybucket/test2.txt to test2.txt
This ...
Xcode debugging - displaying images
I love using the Xcode debugger. You can take a look at a variable's value and even change it.
6 Answers
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Deleting queues in RabbitMQ
...
this is a really extreme answer. you could also say "shut down the server and wipe the disk" to "delete" the queues.
– RubyTuesdayDONO
Sep 14 '17 at 2:11
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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...ce() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower.
for other browsers while loop is the fastest method, since those browsers don't have internal optimizations for slice and concat.
This remains true in Jul 2016.
Below are simple scripts that you can copy-paste in...
How to start an application using android ADB tools?
...lso specify actions to be filter by your intent-filters:
am start -a com.example.ACTION_NAME -n com.package.name/com.package.name.ActivityName
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