Question

I want to create a simple javascript “life game” implementation. I want user to be capable of inputing his structures..

So we have a textaeria, user fills it with something like

*···
*·*·
**··

How to get from such input width 4 , height 3, and an array field with

100010101100

How to do get such data from text input via javascript?

Answer 1

So character 183 rather than a period?

var s = document.getElementById(..);
//remove all whitespace, replace *, replace ·
s = s.replace(/\s+/gm, "").replace(/\*/g, "1").replace(/\xb7/g, "0");

If a period use \. instead of \xb7

Its not clear but if you want that as an array stick .split(""); on the end.

Edit for width/height

var width =  (s + "\r\n").indexOf("\r\n"); //position of 1st new line
var height =  s.split("\r\n").length; //count of lines