javascript - Join Array of Objects by Property using lodash - Stack Overflow

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Is there a way using lodash or another library to join an array of objects?

I'm looking for a readymade function not a for loop.

For example:

[{a: 1}, {a:3}, {a: 4}]
      //Run a function by specifing the property a and setting "," as the delimeter
Get 1,3,4

Is there a way using lodash or another library to join an array of objects?

I'm looking for a readymade function not a for loop.

For example:

[{a: 1}, {a:3}, {a: 4}]
      //Run a function by specifing the property a and setting "," as the delimeter
Get 1,3,4

• javascript
• arrays

Share Improve this question Follow asked Jul 28, 2016 at 23:15 KingKongFrogKingKongFrog 14.4k2222 gold badges7676 silver badges131131 bronze badges

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2 Answers 2

Sorted by: Reset to default 10

Here is your lodash answer

var arr = [{a: 1}, {a:3}, {a: 4}];
var s = _.map(arr, 'a').join(',');
//s == '1,2,3,4'

You don't need lodash for this, you can just use map and join:

let collection = [{a: 1}, {a:3}, {a: 4}];
alert(collection.map(item => item.a).join(','));

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