In typescript, I have an array of objects. I want to create a new array with the headers of the objects from the first array.
let scores = [{name: "A", skills: 50, result: 80},
{name: "B", skills: 40, result: 90},
{name: "C", skills: 60, result: 60}];
let parameters = Array.from(this.scores.keys());
this.console(parameters);
// parameters = [0, 1, 2]
// expecting; parameters = ["name", "skills", "result"]
You could get the keys from the first object of the array.
let scores = [{ name: "A", skills: 50, result: 80 }, { name: "B", skills: 40, result: 90 }, { name: "C", skills: 60, result: 60 }],
parameters = Object.keys(scores[0]);
console.log(parameters);
keysWithoutName = keys.filter(k => k !== 'Name');If you can have different objects with different keys you can use .reduce() and then get the Object.values() of your accumulated object:
const scores = [{name: "A", skills: 50, result: 80}, {name: "B", skills: 40, result: 90}, {x: "C", y: 60, z: 60}];
const res = Object.values(scores.reduce((acc, obj) => {
const key = Object.keys(obj);
acc[key] = acc[key] || key;
return acc;
}, {}));
console.log(res);