Split() integer with Javascript

Question

Valor = 19.90;

MyArray = valor.split(".");

the code hangs , whole variable, however if,

Valor = "19.90";

MyArray = valor.split(".");

alert(MyArray[0]) = 19;
alert(MyArray[1]) = 90;

I would like to know how to use the split in int variable , thank you.

According to solutions, from friends already reputed below, I edit my question to the following form.

No, in the above case, I have the function,

function splitNum (34.50 * 2){
var s = n.toFixed(2).split('.');
var n1 = parseInt(s[0], 10); // 19
var n2 = parseInt(s[1], 10); // 10
return n1+"."+n2;
}

will return me 69.0

But I need you to return 69.00 , how would that be possible ? thank you.

Settled, thank you have a great afternoon.

function splitNum (34.50 * 2){
var s = n.toFixed(2).split('.');
var n1 = parseInt(s[0], 10); // 19
var n2 = parseInt(s[1], 10); // 10
return s[0]"."s[1];
}

Answer 1

The split applies only to strings, not to numeric types. If you have a number with 2 decimal places (or only interested in the first 2 decimal places) you can turn it into a Sting using toFixed.

Valor = 19.90;
Valor.toFixed(2); // "19.90"

var valor2 = 1/3;
valor2.toFixed(2); // "0.33"

0.123456789.toFixed(5); // "0.12345"

From there you can apply the split. Remembering that if you want to convert back to integer*, it is important to specify the basis:

var s = Valor.toFixed(2).split('.');
parseInt(s[0], 10); // 19
parseInt(s[1], 10); // 10

// O que acontece se você omitir a base?
var s = 0.01.toFixed(3).split('.'); // ["0", "010"]
parseInt(s[1]); // 8! (começou com zero, então ele interpreta como octal)

*Remembering: if you want! If what you want is a string yourself, don’t convert back using parseInt, only use the values s[0] and s[1] however you see fit.

Answer 2

No need to convert to string if the value is numeric.

valor = 19.90;
aValores = [parseInt(valor),Math.ceil((valor  % Math.floor(valor)) * 100)];

Answer 3

Just convert you to string before using the split.

There are several ways to convert a number to string, for example:

var n = 10.01;
var s = n.toString();
var a = s.split('.');

By the way, you use the term int and whole to refer to a number that is not integer. These terms are used only for integers (e.g. 1, 2, 3, 4, ... 1000) and not for rational numbers (e.g. 19.90).

EDIT This part of the answer is wrong, read the comments to understand. You might still want to turn the numbers, after the split, back into numeric type:

var n1 = parseInt(a[0]);
var n2 = a.length > 1 ? parseInt(a[1]) : 0;

The solution in the end would look like this

function SplitNum(n)
{
    var s = n.toString();
    var a = s.split('.');
    var n1 = parseInt(a[0]);
    var n2 = a.length > 1 ? parseInt(a[1]) : 0;
    return [n1, n2];
}

The correct way to turn into numbers back, would be to keep what comes after the decimal separator, after decimal separator:

var n1 = parseInt(a[0]);
var n2 = a.length > 1 ? parseFloat('0.'+a[1]) : 0;

Answer 4

As explained in the MDN, the split() serves to separate strings, and what you’re trying to do is separate an integer. What you can do is convert the integer to string:

var n =  123456789;
var digits = (""+n).split("");

Note that this will return you a string array, not an integer.

Answer 5

Solution

You first need to turn the int/double into string for example:

Valor = 19.90;

MyArray = String(Valor).split(".");

alert(MyArray[0]) // 19

alert(MyArray[1]) // 9 que no decimal é a mesma coisa que 90

Answer 6

You can try something like:

var Valor = 19.9;

var Dados = $.map( Valor.toString().split("."), function(v){
    return parseInt(v); 
});

jQuery.map() - https://api.jquery.com/jQuery.map/

Answer 7

To answer your question "Split integer with javascript":

It is not possible. Even because Javascript does not work with Integer(Integer) numbers, it only works with Number(floating number).

But I see that you want a method that does this for you without you using lines of code, because it’s the goal of .split(), then I will provide you with a function assigning her to Number.prototype so that you can use it in the same way as the .split():

Number.prototype.split = function(){
  var a = this.toString().split(".");
  return [parseInt(a[0]),(a[1].length > 1) ? parseInt(a[1]) : (parseInt(a[1])*10)];
} 
var Valor = 19.90;
Valor.split(); //retorna um array [ 19, 90 ]

var Valor = 19.95;
Valor.split(); //retorna um array [ 19, 95 ]

var Valor = 19.957;
Valor.split(); //retorna um array [ 19, 957 ]

Note that it ignores zero at the end because it is a Number and speaking in numbers 19.90 is the same thing as 19.9, so I did a check if the number size is greater than 1 it multiplies by 10 so always having your "zero" you want.