this file is example.js:= module.exports = {
dashboarddistance: function(a, b, c, d, callback) {
var ds = 0;
var distance = require('google-distance');
distance.get({
index: 1,
origin: a + ',' + b,
destination: c + ',' + d
}, function(err, data) {
if (err) {
console.log("a");
ds = 0;
return callback(err, ds);
} else {
console.log("b");
ds = data.distance;
return callback(null, ds);
}
});
},
}; main.js file this :=
var example = require('./example.js');
example.dashboarddistance(a, b, c, d, function(err, distance) {
if (err) {
// dosomething and return
return ;
}
console.log(distance);
});
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