Filter category and subcategory with lodash

JavaScript

let data = [{
category: 'cat1', subcategory: 'subcat1', irrelevantkeythatidontwant: false
},{
category: 'cat1', subcategory: 'subcat1', irrelevantkeythatidontwant: false
},{
category: 'cat1', subcategory: 'subcat2', irrelevantkeythatidontwant: false
},{
category: 'cat2', subcategory: 'subcat3', irrelevantkeythatidontwant: false
},{
category: 'cat2', subcategory: 'subcat3', irrelevantkeythatidontwant: false
},{
category: 'cat2', subcategory: 'subcat3', irrelevantkeythatidontwant: false
}];

/* expected output:
{
	cat1: ['subcat1', 'subcat2'],
  cat2: ['subcat3'],
}
*/
let exp = _.uniqBy(data, 'category')
console.log(exp);

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Filter category and subcategory with lodash

JavaScript

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Use pre-released features

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Console