I am looking to extract a specific subset of values from an object in a specific order.
const obj = { a: 1, b: 2, c: 3, d: 4 };
const values = extractValues(obj, ['a', 'd']);
// extracted values [1, 4]
While I can create my own extractValues function, I'm curious if there is already a more concise solution available in JavaScript vanilla or Lodash.
One way to retrieve specific values from an object is by iterating over the input array and extracting the desired values.
const obj = { x: 5, y: 6, z: 7 };
const values = getValues(obj, ['x', 'z']);
console.log(values);
function getValues(obj,list){
var result = [];
list.forEach(function(e){
result.push(obj[e]);
})
return result;
}To generate the desired result, apply the map function:
const obj = { a: 1, b: 2, c: 3, d: 4 };
const values =getValues(obj, ['a', 'd']);
function getValues(obj,arr)
{
return arr.map(function(e){return obj[e]})
}
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