CODEWITHSUNDEEP
javascriptgoogle-mapsobject
nuthan
nuthan

Reputation: 465

Javascript Objects nesting in array

Am working on Google Maps, I have a problem in creating an array of objects, and a variable holds it(array of objects) for later processing.

var lat=new Array("12.996188333333","12.988683333333","12.99156","13.092916666667");
var lng=new Array("77.58392","77.57781","78.579193333333","77.594161666667");
var latlng = [      new google.maps.LatLng( lat[0], lng[0] ) ,    
        new google.maps.LatLng( lat[1], lng[1]),     
        new google.maps.LatLng( lat[2], lng[2] ),      
        new google.maps.LatLng( lat[3],lng[3] )];

so, latlng holds objects in array.This is a case where array lat and array lng are declared(static).What if its dynamic,say i have the count, but how do i create a dynamic array of objects. I tried to loop it, but no results.Please help!!!

for(var i=0;i<3;i++)
{
var latlng=new Array();
latlng[i]= new google.maps.LatLng(lat[i],lng[i]);
}

console.log(latlng) gives me: [undefined,undefined,undefined,{13.092916666667,77.594161666667}]

Upvotes: 1

Views: 573

Answers (3)

jfriend00
jfriend00

Reputation: 707816

You can do it like this:

var latlng = [];
for (var i=0; i<3; i++)
{
    latlng.push(new google.maps.LatLng(lat[i],lng[i]));
}

You needed to move the declaration of the array outside the loop so it's initialized once and then you add an item onto the end of the array each time through the loop.

You also don't have to hard code the length either:

var latlng = [];
for (var i = 0; i < lat.length; i++)
{
    latlng.push(new google.maps.LatLng(lat[i],lng[i]));
}

Upvotes: 0

Kae Verens
Kae Verens

Reputation: 4079

put the var latlng=new Array(); outside the for loop. at the moment, you're clearing the array every time you loop.

Upvotes: 0

georg
georg

Reputation: 215019

var lat = ["12.996188333333","12.988683333333","12.99156","13.092916666667"];
var lng = ["77.58392","77.57781","78.579193333333","77.594161666667"];

var latlng = [];

for (var i = 0; i < lat.length; i++)
    latlng[i] = new google.maps.LatLng(lat[i], lng[i]);

(assuming lat and lng have the same length).

Upvotes: 3

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