js json groupby prop

Enrybi answered on January 28, 2021 Popularity 6/10 Helpfulness 6/10

answer js json groupby prop

js json groupby prop

Comment

var myJsonFromSQL = [{id:1, cat:'test1'},{id:2, cat:'test1'},
                     {id:3, cat:'test2'},{id:4, cat:'test2'}];

// 1 LINE CODE:
//'Set' deletes/do not consider duplicates
const arr_cat =  [...new Set(myJsonFromSQL.map(i => i.cat))];
//RESULT:
You will get an array with the property values grouped:
arr_cat   ['test1','test2']

Popularity 6/10 Helpfulness 6/10 Language javascript

Source: Grepper

Tags: group-by javascript json prop

Link to this answer
Share Copy Link

Contributed on Jan 28 2021

Enrybi

0 Answers Avg Quality 2/10

js json groupby prop

Contents

More Related Answers

js json groupby prop

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.