javascript syntax to set object property value from external variable

Question

I can better explain my case by code snippet

var cascadiaFault = new google.maps.Polyline({
    paths: [
      new google.maps.LatLng(49.95, -128.1),
      new google.maps.LatLng(46.26, -126.3),
      new google.maps.LatLng(40.3, -125.4)
    ]
});

the value of paths property should be assigned from external variable pathsTemp

var pathsTemp = [];
for (var i = 0; i < boxes.length; i++) {
	var bounds = boxes[i];
	// Perform search over this bounds
	pathsTemp.push(bounds.getCenter());
}
var cascadiaFault = new google.maps.Polyline({
	paths: pathsTemp;
});

Its not working..

Other options that I tried

paths = pathsTemp; -- Not working
paths: paths.push(pathsTmep) -- No syntactic error but, uncaught reference error at runtime when this line is reached

PS: I don't have javascript background and unfortunately I don't have time to start reading the syntax and rules from scratch (However, I can understand most of the js code already written)

Your second approach looks fine, are you sure pathsTemp is the correct array? (what does getCenter return? a new LatLng object?) — doldt
– doldt, Commented Jul 1, 2015 at 8:50
boxes[i] is of type google.maps.LatLngBounds.. bounds.getCenter() returns object of type google.maps.LatLng — JavaHopper
– JavaHopper, Commented Jul 1, 2015 at 9:00
a google.maps.PolylineOptions doesn't have a paths property. It only has a path (paths is for Polygons) — geocodezip
– geocodezip, Commented Jul 1, 2015 at 13:49
@geocodezip the sample presented here uses paths developers.google.com/maps/documentation/javascript/… — JavaHopper
– JavaHopper, Commented Jul 1, 2015 at 22:32

JavaHopper · Accepted Answer · 2015-07-03 06:37:10Z

1

Well, I got what the problem is

The correct syntax is paths: pathsTemp

var pathsTemp = [];
for (var i = 0; i < boxes.length; i++) {
 	var bounds = boxes[i];
  	// Perform search over this bounds
   	pathsTemp.push(bounds.getCenter());
}
var cascadiaFault = new google.maps.Polyline({
   	paths: pathsTemp
});

The above code is syntactically correct, but the problem is it should be path instead of paths

Though the sample example presented at https://developers.google.com/maps/documentation/javascript/geometry#isLocationOnEdge

uses paths, it works with path for me. May be a typo in API documentation

As expected, documentation bug logged

with reference to this stackoverflow discussion

edited Jul 3, 2015 at 6:37

answered Jul 1, 2015 at 10:27

JavaHopper

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JavaHopper · Accepted Answer · 2015-07-01 22:49:39Z

0

for the person who down voted the question : please take a look at this misleading example snippet from google documentation and change your opinion if it makes sense to you (Reputation matters a lot here, for a beginner like me)

enter image description here

answered Jul 1, 2015 at 22:49

JavaHopper

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7 Comments

geocodezip Over a year ago

OK. I stand corrected. That example is wrong (you will note that there isn't a live version of that one...)

JavaHopper Over a year ago

@geocodezip Yeah thats what. I have looked carefully before posting, coz I don't want to lose reputation unnecessarily.

geocodezip Over a year ago

Working version of that example with path and a google.maps.Polyline. [Broken example[(jsfiddle.net/f1wqyh69/1) with paths (no polyline appears and no alert)

JavaHopper Over a year ago

@geocodezip, I got that yesterday, thanks!!! If you have some time, can you please take a look at this old question and suggest something. Not sure you got notified

Sotirios Delimanolis Over a year ago

Merge this into your other answer. No need for two posts.

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