How to store inputs from a textbox in array in Javascript

Question

<!DOCTYPE html>

<html>

<head>


<form id="form1">


Beets:<input id="number1" type="integer" size = "5">

Artichokes: <input id="number2" type="integer" size = "5">

Carrots: <input id="number3" type="integer" size = "5">

</form>

<button id = "submitButton" onclick="RunApp()" > Submit</button>
<button id = "displayButton" onclick="getAllValues()" > Display</button>

<script>


var str = "";
 function getAllValues() {
     var input1, inputs;
	 input1 = document.getElementById("form1");

	 inputs = input1.elements["number1"].value;

     for (i = 0; i < inputs.length; i++) {
         str += inputs[i].value + "  ";
     }
     alert(str);
 }


function RunApp()

{

var beets, artichokes, carrots, input1, input2, input3;


// getting inputs into variables


input1 = document.getElementById("form1");

beets = input1.elements["number1"].value;


input2 = document.getElementById("form1");

artichokes = input1.elements["number2"].value;


input3 = document.getElementById("form1");

carrots = input1.elements["number3"].value;




if (beets == "" || carrots == "" || artichokes == "" || isNaN(beets) || isNaN(carrots) || isNaN(artichokes))

{

    document.getElementById("demo").innerHTML+= "not valid" + "<br>";

    document.getElementById("demo").innerHTML+= "--------------------------" + "<br>";

}

else

{


document.getElementById("demo").innerHTML+= "Beets = " + beets + "<br>";    document.getElementById("demo").innerHTML+= "Artichokes = " + artichokes + "<br>";
document.getElementById("demo").innerHTML+= "Carrots = " + carrots + "<br>";


}
}




</script>


<p id="demo"></p>


</head>

<body>


</body>
</html>

First, this is my first time learning JS.

So, I have a text-box, a submit button, and a display button. When I enter a number in the text-box, and click submit, it shows the number. I enter my second number and clicking the submit button shows me the second number. Then I click on the display button, it will shows the number 1 and number 2 in order. If I have more inputs in the text-box, the display button will show the entire list of all the inputs from the array.

Thank you!

So, the submit button just reads out the current input, but the display button shows an entire list of all the inputs. — Nicole
– Nicole, Commented Dec 10, 2014 at 8:22
I did Google. @AkshayKhandelwal But still don't know how to do it. Could you please help me? Thank you!! — Nicole
– Nicole, Commented Dec 10, 2014 at 8:24
seriously? you have to look for how to get an element by ID and then get it value and then push in the array.. — Akshay Khandelwal
– Akshay Khandelwal, Commented Dec 10, 2014 at 8:27

Madara's Ghost · Accepted Answer · 2014-12-10 08:31:49Z

2

Well, since it's your first time and you're learning I won't just give you the answer, but I'll point you in the right direction.

You want to attach a click event on the submit button to add the value to an array, and then print the array on click of the display button.

answered Dec 10, 2014 at 8:31

Madara's Ghost

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Comments

caslaner · Accepted Answer · 2014-12-10 08:31:20Z

0

i think first you must google for this. I write something and you can improve this. I only want to give an example.

HTML:

<input type="text" id="inputbox">
<br/>
<button type="button" id="submit">Submit</button>
<button type="button" id="display">Display</button>
<br/>
<div id="screen"></div>

JS:

var inputArray = [];
var input = document.getElementById('inputbox');
var screen = document.getElementById('screen');

document.getElementById('submit').onclick = function () {
    inputArray.push(input.value);
    screen.innerHTML = input.value;
};
document.getElementById('display').onclick = function () {
    screen.innerHTML = inputArray
};

http://jsfiddle.net/y9wL27y0/

answered Dec 10, 2014 at 8:31

caslaner

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