How to get all hours between 2 dates

Question

I'm trying to get a list of hours between two date

I've tried do an while no get them, but I dont know why my app is freezing when I call the function

 getHours(){

    let dataA =new Date();
    let dataF = new  Date();
    dataA.setHours(this.state.lojas.data[0].h_abertura.split(':')[0],this.state.lojas.data[0].h_abertura.split(':')[1]);
    dataF.setHours(this.state.lojas.data[0].h_fecho.split(':')[0],this.state.lojas.data[0].h_fecho.split(':')[1]);

    var listaDatas = [];

    console.log(dataF.toString())




    while(Math.abs((( dataA.getTime() - dataF.getTime()) / 60000)) > parseInt(this.state.lojas.data[0].tempoAtender))
    {

       listaDatas.push(dataA.getHours()+":"+dataA.getMinutes());
        dataA.setMinutes(dataA.getMinutes()+ this.state.lojas.data[0].tempoAtender);





    }



 }

Math.abs((( dataA.getTime() - dataF.getTime()) with this i'm getting 540 as result and if I add minutes "dataA.setMinutes(dataA.getMinutes()+ this.state.lojas.data[0].tempoAtender);" and check it again i got 520 but it seens like that it is entering on a infinity loop

Resolution

    let dataA =new Date();
    let dataF = new  Date();
    dataA.setHours(this.state.lojas.data[0].h_abertura.split(':')[0],this.state.lojas.data[0].h_abertura.split(':')[1]);
    dataF.setHours(this.state.lojas.data[0].h_fecho.split(':')[0],this.state.lojas.data[0].h_fecho.split(':')[1]);

    var a = moment(`2016-06-06T${this.state.lojas.data[0].h_fecho.split(':')[0]}:${this.state.lojas.data[0].h_fecho.split(':')[1]}:55`);//now
    var b = moment(`2016-06-06T${this.state.lojas.data[0].h_abertura.split(':')[0]}:${this.state.lojas.data[0].h_abertura.split(':')[1]}:55`);

    var listaDatas = [];

    console.log(dataF.toString())




    while(a.diff(b,'minutes') >= parseInt(this.state.lojas.data[0].tempoAtender))
    {

       listaDatas.push(b.hour()+":"+b.minutes())
        b.add(this.state.lojas.data[0].tempoAtender,'minutes')





    }

    listaDatas.push((b.hour()+":"+b.minutes()).toString())
    alert(listaDatas.toString())

Answer 1

I believe your problem is where you are incrementing dataA:

    dataA.setMinutes(dataA.getMinutes()+ this.state.lojas.data[0].tempoAtender);

dataA.getTime passed your while condition the first time. It seems like you are just making it bigger, not smaller, unless this.state.lojas.data[0].tempoAtender is negative