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Simple calculations for working with lat/lon and km distance?
...in Swift:
func getRandomLocation(forLocation location: CLLocation, withOffsetKM offset: Double) -> CLLocation {
let latDistance = (Double(arc4random()) / Double(UInt32.max)) * offset * 2.0 - offset
let longDistanceMax = sqrt(offset * offset - latDistance * latDistance)
le...
Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
...
setValue:forKey: is part of the NSKeyValueCoding protocol, which among other things, lets you access object properties from the likes of Interface Builder. setValue:forKey: is implemented in classes other than NSDictionary.
...
How to fire AJAX request Periodically?
...
As others have pointed out setInterval and setTimeout will do the trick. I wanted to highlight a bit more advanced technique that I learned from this excellent video by Paul Irish: http://paulirish.com/2010/10-things-i-learned-from-the-jquery-source/
...
Warning on “diff.renamelimit variable” when doing git push
...n doesn't mention 0 as a special value for diff.renamelimit.
So you should set that limit to the value recommended.
Or you can try deactivating the rename detection altogether. (git config diff.renames 0)
You will find a similar example in this blog post "Confluence, git, rename, merge oh my...":
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How can I add remote repositories in Mercurial?
.../to/remote2
You can then use commands like hg push remote1 to send changesets to that repo. If you want that remote repo to update is working directory you'd need to put a changegroup hook in place at that remote location that does an update. That would look something like:
[hooks]
changegroup ...
Object of custom type as dictionary key
... based equality) can
explicitly flag themselves as being
unhashable by setting __hash__ = None
in the class definition. Doing so
means that not only will instances of
the class raise an appropriate
TypeError when a program attempts to
retrieve their hash value, but they
will also be ...
Select elements by attribute in CSS
...
CSS doesn't seem to detect this if the data attribute is set, or changed via JS.
– ᴍᴀᴛᴛ ʙᴀᴋᴇʀ
Feb 4 '15 at 14:45
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See “real” commit date in github (hour/day)
.../ @match https://github.com/*
// ==/UserScript==
(function() {
setTimeout(function() {
var els = window.document.querySelectorAll("time-ago,relative-time");
els.forEach(function(el) {
el.innerHTML += ' <span class="text-small">(' + el.title + ')</span...
How to iterate through all git branches using bash script
...mething similar with $@ if you are not using a shell that supports arrays (set -- to initialize and set -- "$@" %(refname) to add elements).
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How to get Url Hash (#) from server side
...be used in a generic fashion.
If the hidden input field has a valid value, set that as the URL hash (window.location.hash again) and/or perform other actions.
We used jQuery to simplify the selecting of the field, etc ... all in all it ends up being a few jQuery calls, one to save the value, and a...