Only allow to select two days ahead

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Only allow to select two days ahead

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#1 by (3 votes)
#2 by (2 votes)

1

I would like a javascript function that would allow me to select only two days ahead of the current one. example: today is 06/28/2018 it allows me to select from day 3, because it would count day 29/06 as 1st day, would skip weekend and would count day 2 as the 2nd day, then release select from day 3

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javascript html date

asked by anonymous 29.06.2018 / 00:18

2 answers

2

This function does this check (explanations in code):

function validadata(d){
   var data = d.value; // pega o valor do input
   data = data.replace(/\//g, "-"); // substitui eventuais barras (ex. IE) "/" por hífen "-"
   var data_array = data.split("-"); // quebra a data em array
   var dia = data_array[2];
   var mes = data_array[1];
   var ano = data_array[0];

   // para o IE onde será inserido no formato dd/MM/yyyy
   if(data_array[0].length != 4){
      dia = data_array[0];
      mes = data_array[1];
      ano = data_array[2];
   }

   var hoje = new Date();
   var d1 = hoje.getDate();
   var m1 = hoje.getMonth();
   var a1 = hoje.getFullYear();

   var d1 = new Date(a1, m1, d1);
   var d2 = new Date(ano, mes-1, dia);

   var diff = d2.getTime() - d1.getTime();
   diff = diff / (1000 * 60 * 60 * 24);
   
   var dias = 3; // número de dias pra frente
   var a = (d1.getDay()+1)%7; // dia da semana de hoje+1
   var da = (d1.getDay()+3)%7; // dia da semana de hoje+3

   // se for 6 (sábado) ou 0 (domingo)
   if(a == 6 || da == 6 || da == 0){
      dias += 2;
   }else if(a == 0){
      dias += 1;
   }

   if(diff < dias){
      console.log("Apenas data a partir do 3º dia");
   }else{
      console.log("Data válida!");
   }
}

<input type="date" id="txtDat" onchange="validadata(this)">

29.06.2018 / 01:52

Calculate percentage between two dates MYSQL Get names from a list that have a size equal to 4

score 3 · Accepted Answer

You can use the min attribute to restrict the dates that can be chosen by the user

   var hoje = new Date();
   var d1 = hoje.getDay();
   
   // os valores de d1 representam os dias da semana.
   // se for  sexta (5) ou sabado (6) 
   if(d1 == 5){
      dias += 2;
   }else if(d1 == 6){
      dias += 1;
   }else{
      dias = 3;
   }


var today = new Date();
today.setDate(today.getDate() + dias); //Voalá
today = today.toISOString().split('T')[0];

document.getElementsByName("date")[0].setAttribute('min', today);

<input type="date" id="no-spin" onkeypress="return false" name="date"  min="">

Adding this line document.getElementById('txtDat').value= ""; to the code of dvd

   
function validadata(d){
   var data = d.value; // pega o valor do input
   data = data.replace(/\//g, "-"); // substitui eventuais barras (ex. IE) "/" por hífen "-"
   var data_array = data.split("-"); // quebra a data em array
   var dia = data_array[2];
   var mes = data_array[1];
   var ano = data_array[0];

   // para o IE onde será inserido no formato dd/MM/yyyy
   if(data_array[0].length != 4){
  dia = data_array[0];
  mes = data_array[1];
  ano = data_array[2];
   }

   var hoje = new Date();
   var d1 = hoje.getDate();
   var m1 = hoje.getMonth();
   var a1 = hoje.getFullYear();

   var d1 = new Date(a1, m1, d1);
   var d2 = new Date(ano, mes-1, dia);

   var diff = d2.getTime() - d1.getTime();
   diff = diff / (1000 * 60 * 60 * 24);
   
   var dias = 3; // número de dias pra frente
   var a = (d1.getDay()+1)%7; // dia da semana de hoje+1
   var da = (d1.getDay()+3)%7; // dia da semana de hoje+3

   // se for 6 (sábado) ou 0 (domingo)
   if(a == 6 || da == 6 || da == 0){
  dias += 2;
   }else if(a == 0){
  dias += 1;
   }

   if(diff < dias){
  document.getElementById('txtDat').value= "";
  console.log("Apenas data a partir do 3º dia");
   }else{
  console.log("Data válida!");
   }
}

<input type="date" id="txtDat" onchange="validadata(this)">