get week back date javascript moment code example

Example 1: moment get iso week number

const weekNumber = moment().format("w");

Example 2: moment get date by weeknumber

console.log(state.weeknumber)
    console.log(state.created_at.clone().add(7, "day").format("Do MMMM"))
    console.log(state.weeknumber)
    console.log(moment().day("monday").week(value).format("Do MMMM"))
    console.log(moment().day("tuesday").week(value).format("Do MMMM"))
    console.log(moment().day("wednesday").week(value).format("Do MMMM"))
    console.log(moment().day("thursday").week(value).format("Do MMMM"))
    console.log(moment().day("friday").week(value).format("Do MMMM"))
    console.log(moment().day("saturday").week(value).format("Do MMMM"))
    console.log(moment().day("sunday").week(value).add(7, "day").format("Do MMMM"))