I would like to get result like
arr=['A','B','C','D']
from the object like below.
var obj = {
obj1: 'A',
obj2: [ 'B', 'C', 'D' ] }
How to reach out to concatenate to array?
If someone has opinion, please let me know.
Thanks
Add a comment
|
4 Answers
You can get the values using Object.values() and to get them in one array you can use Array.prototype.flat():
var obj = {
obj1: 'A',
obj2: ['B', 'C', 'D']
}
var arr = Object.values(obj).flat()
console.log(arr)
Comments
You can make use of Object.values and spread it into a single array with Array.prototype.concat since Array.prototype.flat is not supported in older browsers
var obj = {
obj1: 'A',
obj2: ['B', 'C', 'D']
}
var vals = [].concat(...Object.values(obj))
console.log(vals)2 Comments
Heisenberg
thank you for answering, sorry for basic questions ,what is the meaning of
... in front of Object? thanks
Shubham Khatri
That is a spread syntax. developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
Quick solution is to create an array of obj1 and concat the obj2.
const arr = [obj.obj1].concat(obj.obj2);
Comments
You can use reduce() followed by Object.values()
var obj = {
obj1: 'A',
obj2: [ 'B', 'C', 'D' ]
};
const res = Object.values(obj).reduce((acc, curr) => [...acc, ...curr], []);
console.log(res);