typescript array of keys of object code example

Example 1: object keys javascript

const object1 = {
  a: 'somestring',
  b: 42,
  c: false
};

console.log(Object.keys(object1));
// expected output: Array ["a", "b", "c"]

Example 2: typescript key value array

let indexedArray: {[key: string]: number}

let indexedArray: {[key: string]: number} = {
    foo: 123,
    bar: 456
}

indexedArray['foo'] = 12;
indexedArray.foo= 45;

Example 3: object.keys javascript

const object1 = {
  a: 'somestring',
  b: 42,
  c: false
};

console.log(Object.keys(object1));