Array javascript output

Question

How to recover the elements of a foreach for reformed in this way:

['julie','nicola','sahra']

My code

   var outPutStats = ''
    client.data.forEach(function(element) {
         outPutStats += [element.name];
    }); 
    .............................
    .............................

        xAxis: {
            name: [outPutStats] // Must be ['dataName1','dataName2']
        },
        yAxis: {
            title: {
                text: null
            }
        },

@Paul is a array, one by one name is client.torrents[0].name — atmon3r
– atmon3r, Commented Jan 28, 2017 at 2:04
@ibrahimmahrir In string I supose, it must come out in this way: ['julie','nicola','sahra'] — atmon3r
– atmon3r, Commented Jan 28, 2017 at 2:05
@atmon3r I don't follow. You want the outPutStats to be like this: ['julie','nicola','sahra'] or like this "['julie','nicola','sahra']"? — ibrahim mahrir
– ibrahim mahrir, Commented Jan 28, 2017 at 2:08

Paul · Accepted Answer · 2017-01-28 02:05:43Z

1

try this:

var outputStats = [];
client.data.forEach(function(element) { 
  outputStats.push(element.name);
});

It's probably more semantically accurate to use Array#map instead, though, if the clients you want support it (which afaik they should if they support forEach):

var outputStats = client.data.map(function(element) { return element.name; });

answered Jan 28, 2017 at 2:05

Paul

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ibrahim mahrir · Accepted Answer · 2017-01-28 02:05:51Z

1

If you want to copy client.data into a new array outPutStats then this will work (although I don't see the reason why, you could just use client.data):

// This must be an array
var outPutStats = [];
client.data.forEach(function(element) {
    // fill the array with elements
    outPutStats.push(element.name);
}); 
// ...
// ...

xAxis: {
    name: outPutStats // outPutStats is already an array
},
    yAxis: {
        title: {
            text: null
        }
    },

answered Jan 28, 2017 at 2:05

ibrahim mahrir

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3 Comments

Paul Over a year ago

He's trying to transform the array content, is why he is not just using client.data.

ibrahim mahrir Over a year ago

@torazaburo Why poor? It does the same thing. Plus I just keeped the same format as the question. (he used forEach so I used it as well to keep things clear).

user663031 Over a year ago

This use case is the entire raison d'etre of map. And yes, you are allowed, indeed encouraged, to suggest ways to improve the OP's code, rather than slavishly copy sub-optimal parts of it.

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