Having Issue on Loading Object to Two Dimensional Array

Question

Why am I not able to load following object Points in to 2 dimensional Array MultiPoints?

 var points = {lat:"48", long:"123"};
    var MultiPoints = [];
    
    for (i = 0; i <3; i++) { 
        MultiPoints.push(points[i].lat, points[i].long );
    }
    
    console.log(MultiPoints);

What I need to have is

var MultiPoints = [ [48, 123], [48, 123], [48, 123] ];

Read up on JavaScript objects vs. arrays. Not the same thing. — TimoStaudinger
– TimoStaudinger, Commented Dec 8, 2016 at 21:26

Nina Scholz · Accepted Answer · 2016-12-08 21:35:02Z

1

You do not have an array to iterate, just one object, then you need to push an array as well.

var points = { lat: "48", long: "123" },
    MultiPoints = [],
    i;
    
for (i = 0; i < 3; i++) { 
    MultiPoints.push([points.lat, points.long]);
}
   
console.log(MultiPoints);

A suggestion for mapping multiple points with Array#map.

The map() method creates a new array with the results of calling a provided function on every element in this array.

var points = [{ lat: "48", long: "123" }, { lat: "49", long: "124" }, { lat: "50", long: "125" }], 
    multiPoints = points.map(function (point) {
        return [point.lat, point.long];
    });
   
console.log(multiPoints);

edited Dec 8, 2016 at 21:35

answered Dec 8, 2016 at 21:25

Nina Scholz

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2 Comments

Behseini Over a year ago

Thanks Nina specially for the suggestion part!

Nina Scholz Over a year ago

i suggest to use a convention for naming variables and use only names with starting upper case letter for classes.

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