get data from post javascript code example

Example 1: get data from api in javascript

const GetData = [];
  useEffect(() => {
    fetch(API_URL)
      .then((res) => res.json())
      .then((data) => {
        GetModesData.push(...data);
        setDataState(GetData.map((d) => d.modeName));
      });
  }, []);

Example 2: get data from url javascript

let url = 'https://www.example.com?name=n1&name=n2';
let params = (new URL(url)).searchParams;
params.get('name') // "n1"
params.getAll('name') // ["n1", "n2"]