I have data structured like this:
var states = {
'alabama': { abbv:'AL', ec: 9, winner: 0},
'alaska': { abbv:'AK', ec: 3, winner: 0},
'arizona': { abbv:'AZ', ec: 11, winner: 0}
}
How would I find “Alaska” by say searching for “AK”?
2 Answers
Iterate the state names (keys) and use the find method to return the right state.
var states = {
'alabama': { abbv:'AL', ec: 9, winner: 0},
'alaska': { abbv:'AK', ec: 3, winner: 0},
'arizona': { abbv:'AZ', ec: 11, winner: 0}
}
const searchFor = "AK"
const foundState = Object.keys(states).find(stateName => {
return states[stateName].abbv === searchFor
})
console.log(foundState)
// => "alaska"
console.log(states[foundState])
// => { abbv:'AK', ec: 3, winner: 0}
Comments
There is a lot of ways to implement it, this example bellow is a dynamic one, which takes a source, 'prop' (property) and a value. For example:
function getByProp(source, prop, value) {
let item = Object.keys(source).filter(key => source[key][prop] === value);
if (item){
return source[item[0]];
}
return null;
}
let alaska = getByProp(states, 'abbv', 'AK'); // -> alaska prop from states object!
Then you just pass the arguments which are 'states', 'abbv', and 'AK'.
