How to .substr() a integer in Javascript

Question

As the title says, which function will give me a result similar to what .substr() does, only for integers?

Thanks!

UPDATE:

Here is what isn't working:

if ($(#itemname).val() == "Not Listed") {

        var randVal = Math.random() * 10238946;

        var newVal = randVal.toString().substr(0, 4);

        $("#js_itemid").val(randVal);

        $("#js_price").val("199.99");

    }

Answer 1

What about ...

var integer = 1234567;
var subStr = integer.toString().substr(0, 1);

... ?

Answer 2

Given

var a = 234; 

There are several methods to convert a number to a string in order to retrieve the substring:

• string concatenation
• Number.prototype.toString() method
• template strings
• String object

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Examples

Included are examples of how the given number, a, may be converted/coerced.

Empty string concatenation

(a+'').substr(1,1);        // "3"

Number.prototype.toString method

a.toString().substr(1,1)   // "3"

Template strings

`${a}`.substr(1,1)         // "3"

String object

String(a).substr(1,1)      // "3"