How to convert object to array with lodash
I have an object
{
"holdings": [
{
"label": "International",
"value": 6
},
{
"label": "Federal",
"value": 4
},
{
"label": "Provincial",
"value": 7
}
]
}
I want to convert it to below object with lodash
{
"holdings": [
[
"International",
6
],
[
"Federal",
4
],
[
"Provincial",
7
],
[
"Corporate",
7
]
]
}
is there any way to change it. Please suggest.
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2 answers
If you only want to use lodash, you can do so with _.mapValues
and _.values
to get the result, for example
console.log(_.mapValues(data, _.partial(_.map, _, _.values)));
// { holdings: [ [ 'International', 6 ], [ 'Federal', 4 ], [ 'Provincial', 7 ] ] }
The same can be written without a partial function, for example
console.log(_.mapValues(data, function(currentArray) {
return _.map(currentArray, _.values)
}));
// { holdings: [ [ 'International', 6 ], [ 'Federal', 4 ], [ 'Provincial', 7 ] ] }
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This works recursively (so you need to call the property holdings
if you want to store it) and "understands" nested objects and nested arrays. (vanilla JS):
var source = {
"holdings": [
{
"label": "International",
"value": 6
},
{
"label": "Federal",
"value": 4
},
{
"label": "Provincial",
"value": 7
}
]
}
function ObjToArray(obj) {
var arr = obj instanceof Array;
return (arr ? obj : Object.keys(obj)).map(function(i) {
var val = arr ? i : obj[i];
if(typeof val === 'object')
return ObjToArray(val);
else
return val;
});
}
alert(JSON.stringify(ObjToArray(source.holdings, ' ')));
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