I have a JSON in the format.
var input = [
{status:"good", state: "NY"},
{status:"bad", state: "FL"},
{status:"decent", state: "CA"}
]
I want to transform it in an object of the format:
myObj = {NY:"good",FL:"bad",CA:"decent"}
The reason I want this is so that I can easily grab the myObj.NY value.
Short and simple
var input = [
{status:"good", state: "NY"},
{status:"bad", state: "FL"},
{status:"decent", state: "CA"}
]
var obj = {};
input.forEach(function(k) {
obj[k.state] = k.status;
});
console.log(obj);You can try using "Object.assign" and "Array.map" as well like below to achieve your desired result
var input = [
{status:"good", state: "NY"},
{status:"bad", state: "FL"},
{status:"decent", state: "CA"}
]
let res = Object.assign(...input.map(({ state, status}) => ({ [state]: status })))
console.log(res)
var myobj = {};
Input.forEach(function (i) { myobj[i.status] = i.state;}
Input.foreach should be input.forEachYou can do a simple forEach() loop on that array with array destructuring to make your code short and simple.
var input = [{
status: "good",
state: "NY"
},
{
status: "bad",
state: "FL"
},
{
status: "decent",
state: "CA"
}
];
var res = {};
input.forEach(({state, status})=> res[state] = status);
console.log(res);Using Array.prototype.reduce()
var myObj = input.reduce( (r,x) => { r[x.status] = x.state ; return r }, {})
This can be accomplished as well using map, by assigning the object key through the [key] syntax:
var input = [
{status:"good", state: "NY"},
{status:"bad", state: "FL"},
{status:"decent", state: "CA"}
]
var myObj = Object.assign({}, ...input.map(item => ({
[item.state]: item.status
})));
console.log(myObj);
myObj will be an array of objects, not a single object. Also using Object.assign here is unnecessary.