JAVASCRIPT

javascript distance between two points

Math.hypot(x2-x1, y2-y1)

how to calculate distance between two points in javascript

function distance(x1, y1, x2, y2) {
return Math.hypot(x2-x1, y2-y1)
}

javascript distance between two points

var a = x1 - x2;
var b = y1 - y2;

var c = Math.sqrt( a*a + b*b );

// c is the distance

js calculate distance between two coordinates

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
}