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Finding the max value of an attribute in an array of objects
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To find the maximum y value of the objects in array:
Math.max.apply(Math, array.map(function(o) { return o.y; }))
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How to see query history in SQL Server Management Studio
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[Since this question will likely be closed as a duplicate.]
If SQL Server hasn't been restarted (and the plan hasn't been evicted, etc.), you may be able to find the query in the plan cache.
SELECT t.[text]
FROM sys.dm_exec_cached_plans AS p
CROSS APPLY sys.dm_exec_sql_tex...
Calculate distance between two latitude-longitude points? (Haversine formula)
How do I calculate the distance between two points specified by latitude and longitude?
41 Answers
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Detecting a mobile browser
...tmobilebrowsers.com):
Here's a function that uses an insanely long and comprehensive regex which returns a true or false value depending on whether or not the user is browsing with a mobile.
window.mobileCheck = function() {
let check = false;
(function(a){if(/(android|bb\d+|meego).+mobile|ava...
Check if inputs are empty using jQuery
...in. If a field is clicked into and then not filled out, I would like to display a red background.
18 Answers
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Understanding the Rails Authenticity Token
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What happens
When the user views a form to create, update, or destroy a resource, the Rails app creates a random authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the user submi...
How to return multiple lines JSX in another return statement in React?
...tags as function calls (see docs). Then the first one becomes:
{[1,2,3].map(function (n) {
return React.DOM.p(...);
})}
And the second one:
{[1,2,3].map(function (n) {
return (
React.DOM.h3(...)
React.DOM.p(...)
)
})}
It should now be clear that the second snippet doesn't really ...
Why does this method print 4?
I was wondering what happens when you try to catch an StackOverflowError and came up with the following method:
7 Answers
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How can I expose more than 1 port with Docker?
So I have 3 ports that should be exposed to the machine's interface. Is it possible to do this with a Docker container?
4 A...
How can one close HTML tags in Vim quickly?
...e in Vim , but recently I came across this again. Say I'm writing some simple HTML :
11 Answers
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