Angularjs split array

Question

I have an array that looks like this

    $scope.A = [

          [ "1.31069258855609,103.848649478524", "1.31138534529796,103.848923050526" ],
          [ "1.31213221536436,103.848328363879", "1.31288473199114,103.849575392632" ]

        ];

I want to make it into something like this

        $scope.B = [
           [
             [1.31069258855609,103.848649478524], [1.31138534529796,103.848923050526]
           ],
           [
             [1.31213221536436,103.848328363879], [1.31288473199114,103.849575392632]
           ]
         ];

PS: Sorry if this isnt splitting, I am not sure how to address this problem as

Code:

    var latlngs = $scope.polyLineCord.map(subarr => subarr.map(str => str.split(',').map(Number)))
    console.log(latlngs)

Fetched from an api

ITnyp
– ITnyp

2018-11-08 09:16:31 +00:00
Commented Nov 8, 2018 at 9:16 — ITnyp
– ITnyp, Commented Nov 8, 2018 at 9:16
I am trying to plot a polyline in my map

ITnyp
– ITnyp

2018-11-08 09:17:21 +00:00
Commented Nov 8, 2018 at 9:17 — ITnyp
– ITnyp, Commented Nov 8, 2018 at 9:17
Ohh, sorry it was a typo edited it

ITnyp
– ITnyp

2018-11-08 09:18:36 +00:00
Commented Nov 8, 2018 at 9:18 — ITnyp
– ITnyp, Commented Nov 8, 2018 at 9:18

CertainPerformance · Accepted Answer · 2018-11-08 09:18:41Z

1

map each item in the outer array, then .map each subarray and split by commas, and map again by Number to transform the strings to numbers:

const input = [
  ["1.31069258855609,103.848649478524", "1.31138534529796,103.848923050526"],
  ["1.31213221536436,103.848328363879", "1.31288473199114,103.849575392632"]
];
console.log(
  input.map(
    subarr => subarr.map(
      str => str.split(',').map(Number)
    )
  )
);

answered Nov 8, 2018 at 9:18

CertainPerformance

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8 Comments

ITnyp Over a year ago

I have no idea how to read this, is it possible to store the result into a variable?

CertainPerformance Over a year ago

Just put something like var somevar = in place of console.log(, the console.log in the code above is just to demonstrate that it results in the output you want

ITnyp Over a year ago

Nice! Exactly how i want it. Thanks again for the help!

ITnyp Over a year ago

are you still there? I don't know why but I am return with a different result when I use it on my code

ITnyp Over a year ago

The result I am returned is nested in an array

|

rodrigocfd · Accepted Answer · 2018-11-08 09:33:30Z

0

A function to do the job:

function splitMyArray(arr) {
    for (var i = 0; i < arr.length; ++i) {
        var line = arr[i];
        for (var k = 0; k < line.length; ++k) {
            var parts = line[k].split(',');
            line[k] = [parseFloat(parts[0]), parseFloat(parts[1])];
        }
    }
    return arr;
}

Usage example:

var myArr = [
    ["1.31,103.84", "1.32,103.85"],
    ["1.39,103.77", "1.40,103.78"]
];

var splitted = splitMyArray(myArr);
console.log(splitted);

edited Nov 8, 2018 at 9:33

answered Nov 8, 2018 at 9:25

rodrigocfd

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