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How to check if multiple array keys exists
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@Ozh aside from that array_key_exists is slower than isset
– iautomation
Mar 1 '16 at 22:49
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show 4 more comments
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How to get index using LINQ? [duplicate]
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An IEnumerable is not an ordered set.
Although most IEnumerables are ordered, some (such as Dictionary or HashSet) are not.
Therefore, LINQ does not have an IndexOf method.
However, you can write one yourself:
///<summary>Finds the index of the firs...
Network tools that simulate slow network connection [closed]
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You can completely reset all tc rules for loopback with the single command sudo tc qdisc del dev lo root - change lo to eth0 if you're using a wired connection etc
– Hamish Downer
Sep 18 '13 at 14:26
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Passing A List Of Objects Into An MVC Controller Method Using jQuery Ajax
...ngs': things });
$.ajax({
contentType: 'application/json; charset=utf-8',
dataType: 'json',
type: 'POST',
url: '/Home/PassThings',
data: things,
success: function () {
$('#result').html('"PassThings()" successfully called.');...
Where is a complete example of logging.config.dictConfig?
... it whole cloth, but maybe reusing something that's already there.. If you set it to True then I don't seem to get any output.
– Nick T
Apr 12 '19 at 23:19
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Disable a Maven plugin defined in a parent POM
...t;phase/>
</execution>
2 points I want to highlight:
phase is set to nothing, which looks less hacky than 'none', though still a hack.
id must be the same as execution you want to override. If you don't specify id for execution, Maven will do it implicitly (in a way not expected intuit...
Query EC2 tags from within instance
...tag on it.
Assumes EC2_PRIVATE_KEY and EC2_CERT environment variables are set.
ec2-describe-tags \
--filter "resource-type=instance" \
--filter "resource-id=$(ec2-metadata -i | cut -d ' ' -f2)" \
--filter "key=Name" | cut -f5
This returns Foo.
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
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Setting ssh authorized_keys seem to be simple, but it hides some traps I'm trying to figure.
-- SERVER --
In /etc/ssh/sshd_config, set passwordAuthentication yes to let the server temporarily accept password authentication
--...
Rails: Default sort order for a rails model?
...er for you!
In fact they are Class level methods as they operate on the 1 set of 'all' records.
Their format is changing however, with rails 4 there are deprecation warning when using #scope without passing a callable object. For example scope :red, where(color: 'red') should be changed to scope :...
MongoDB Aggregation: How to get total records count?
..., 'results' => array( '$push' => '$$ROOT' ) ),
// apply limit and offset
array('$project' => array( 'total' => 1, 'results' => array( '$slice' => array( '$results', $skip, $length ) ) ) )
))
Result will look something like this:
[
{
"_id": null,
"total": ...,
"re...