How to catch the start and end of the week on Moment.js

Question

I use the following code to catch the start and end of the week.

pegaData() {
    moment().locale();
    var agora;
    var datainicial;
    var datafinal;
    agora = moment().format('DD-MM-YYYY');
    console.log(agora);
    if(agora = 'Thusday'){
        datainicial = moment().subtract(4, 'days').calendar();
        datainicial = moment().format('DD-MM-YYYY');
        datafinal = moment().add(2, 'days').calendar();
        datafinal = moment().format('DD-MM-YYYY');

    }
    console.log(datainicial);
    console.log(datafinal);
}

And the code returns right the initial and final date, only not in the format I need, which would be 'DD-MM-YYYY'.

But at the moment of conversion, as I call the Moment again, it converts the current date, as I can format the date without calling the Moment again?

Answer 1

If you want to change the day of the week, just use the method day, passing a value between zero (Sunday) and 6 (Saturday):

let agora = moment();

let inicio = moment().day(0); // domingo desta semana
let fim = moment().day(6); // sábado desta semana

// imprimir as datas no formato desejado
let formato = 'DD/MM/YYYY';
console.log('agora=', agora.format(formato));
console.log('início=', inicio.format(formato));
console.log('fim=', fim.format(formato));

<script src="https://momentjs.com/downloads/moment.min.js"></script>

So you don’t need to be doing multiple tests, as you were doing ("if today is fifth, sum 2 days, etc").

Then you assign the result of each one to a variable and use format to display them in the desired format.

In the code above, as today is 30/05/2019, then the initial value will be 26/05/2019, and the final value will be 01/06/2019.