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Calculate distance between two latitude-longitude points? (Haversine formula)
...la.
function getDistanceFromLatLonInKm(lat1,lon1,lat2,lon2) {
var R = 6371; // Radius of the earth in km
var dLat = deg2rad(lat2-lat1); // deg2rad below
var dLon = deg2rad(lon2-lon1);
var a =
Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2))...
Serializing object that contains cyclic object value
... seen.push(val);
}
return val;
});
http://jsfiddle.net/mH6cJ/38/
As correctly pointed out in other comments, this code removes every "seen" object, not only "recursive" ones.
For example, for:
a = {x:1};
obj = [a, a];
the result will be incorrect. If your structure is like this, ...
How to run a single test from a rails test suite?
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edited Feb 18 '16 at 15:35
Kashyap
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answered Oc...
ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
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QuantumMechanicQuantumMechanic
12.9k33 gold badges3838 silver badges6363 bronze badges
...
Basic http file downloading and saving to disk in python?
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edited May 23 '17 at 11:47
Community♦
111 silver badge
answered Oct 26 '13 at 4:59
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Using node-inspector with Grunt tasks
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135
To run grunt in debug, you need to pass the grunt script to node explicitly:
node-debug $(whic...
How do I parse XML in Python?
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edited Dec 13 '19 at 0:39
Mig B
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answere...
Saving enum from select in Rails 4.1
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edited Dec 18 '16 at 21:32
Ahmed Fahmy
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answered May 15 '14 at 19...
Split string into array of character strings
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edited Oct 19 '12 at 7:39
Stephan
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answe...
Media query to detect if device is touchscreen
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38
I would suggest using modernizr and using its media query features.
if (Modernizr.touch){
...