declare object in typescript code example

Example 1: typescript type object

type Dictionary = {
  [key: string]: any
}

Example 2: object type in typescript

declare function create(o: object | null): void;
// OKcreate({ prop: 0 });create(null);create(undefined); // with `--strictNullChecks` flag enabled, undefined is not a subtype of nullArgument of type 'undefined' is not assignable to parameter of type 'object | null'.2345Argument of type 'undefined' is not assignable to parameter of type 'object | null'.
create(42);Argument of type '42' is not assignable to parameter of type 'object | null'.2345Argument of type '42' is not assignable to parameter of type 'object | null'.create("string");Argument of type '"string"' is not assignable to parameter of type 'object | null'.2345Argument of type '"string"' is not assignable to parameter of type 'object | null'.create(false);Argument of type 'false' is not assignable to parameter of type 'object | null'.2345Argument of type 'false' is not assignable to parameter of type 'object | null'.Try

Example 3: typescript operate with html objects

ts// 1. Select the div element using the id property
const app = document.getElementById("app");

// 2. Create a new <p></p> element programmatically
const p = document.createElement("p");

// 3. Add the text content
p.textContent = "Hello, World!";

// 4. Append the p element to the div element
app?.appendChild(p);