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nodejs calculate distance between 2 cities

Jyotika Sharma answered on April 20, 2022 Popularity 1/10 Helpfulness 1/10

answer nodejs calculate distance between 2 cities

nodejs calculate distance between 2 cities

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function calcCrow(lat1, lon1, lat2, lon2) 
    {
      var R = 6371; // km
      var dLat = toRad(lat2-lat1);
      var dLon = toRad(lon2-lon1);
      var lat1 = toRad(lat1);
      var lat2 = toRad(lat2);

      var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
        Math.sin(dLon/2) * Math.sin(dLon/2) * Math.cos(lat1) * Math.cos(lat2); 
      var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a)); 
      var d = R * c;
      return d;
    }

    // Converts numeric degrees to radians
    function toRad(Value) 
    {
        return Value * Math.PI / 180;
    }

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: between distance javascript

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Contributed on Apr 20 2022

Jyotika Sharma

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nodejs calculate distance between 2 cities

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