I need to be able to paste something like this inside a textarea:
var cars = new Array(new Array(3), new Array(3));
cars[0][0] = 'FORD';
cars[0][1] = 'Focus';
cars[0][2] = 'Mondeo';
cars[1][0] = 'VOLKSWAGEN';
cars[1][1] = 'Golf';
cars[1][2] = 'Polo';
cars[1][3] = 'Lupo';
An afterwards being able to access cars array from my script as a common variable. Been trying with eval, but after googling I'm really scare of it. Can somebody help me?
You can attach arbitrary data to any html element with jquery .data() method.
So given a textarea like this:
<textarea id="txa"></textarea>
From jquery you could do:
var cars = new Array(new Array(3), new Array(3));
cars[0][0] = 'FORD';
...
$('#txa').data('myvar', cars);
And then retrieve it later with:
var arr = $('#txa').data('myvar');
alert( arr[0][0] ); //alerts FORD
UPDATE:
Now, based on your last comments, it seems what you just need is the eval() function to execute the javascript code you have in your textarea, like this:
code = $('textarea').val();
eval( code );
alert( arr[0][0] ); //alerts FORD
See working demo
eval().