I have a code snippet that looks like this:
I am trying to figure out the best approach for this. I have a group:
data
[
{
"date": "16/04/2020",
"count": 0,
"name": "A"
},
{
"date": "16/04/2020",
"count": 1,
"name": "B"
},
{
"date": "17/04/2020",
"count": 0,
"name": "B"
}
//...More.....
]
{
"date": "04/2020",
"symtom": {
"data": [
{
"date": "16/04/2020",
"data": [
{
"name": "A",
"count": [
{
"date": "16/04/2020",
"count": 0,
"name": "A"
}
]
},
{
"name": "B",
"count": [
{
"date": "16/04/2020",
"count": 1,
"name": "B"
}
]
},
//...More.....
]
},
{
"date": "17/04/2020",
"data": [
{
"name": "B",
"count": [
{
"date": "17/04/2020",
"count": 0,
"name": "B"
}
]
},
//...More.....
]
}
]
}
}Is there a way to fix the code and get the desired output?
Code :
const items = [
{
tab: 'Results',
section: '2017',
title: 'Full year Results',
description: 'Something here',
},
{
tab: 'Results',
section: '2017',
title: 'Half year Results',
description: 'Something here',
},
{
tab: 'Reports',
section: 'Marketing',
title: 'First Report',
description: 'Something here',
}
];
function groupAndMap(items, itemKey, childKey, predic){
return _.map(_.groupBy(items,itemKey), (obj,key) => ({
[itemKey]: key,
[childKey]: (predic && predic(obj)) || obj
}));
}
var result = groupAndMap(items,"tab","sections",
arr => groupAndMap(arr,"section", "items"));
console.log(result);<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>Reference : Group array of object nesting some of the keys with specific names
Here is how I would prefer the answer to look like (Answer) :
{
"date": "04/2020",
"symtom": {
"data": [
{
"date": "16/04/2020",
"data": [
{
"name": "A",
"count": 0,
},
{
"name": "B",
"count": 1,
},
//...More.....
]
},
{
"date": "17/04/2020",
"data": [
{
"name": "B",
"count":0,
},
//...More.....
]
}
]
}
}