[javascript-dev] Re: [sharingisfun] js based change filter

On 6 sept. 07, at 23:17, Emmanuel Jourdan wrote:

> anything allows you to receive any message. For example, if you  
> send an integer and the msg_int method is not defined, the anything  
> function will be triggered. This is espacially useful for symbols  
> as it's not possible to think about every symbol you could send.

Maybe an example will make it clearer, to achieve the changeany you  
could have only use the anything method:

var lastThing = new Array();

function anything()
{
	var i;
	var tmp = arrayfromargs(messagename, arguments);	// make an array  
from the message
	var isDifferent = false;
	
	if (lastThing.length == tmp.length) {
		for (i = 0; i < tmp.length; i++)
			if (lastThing[i] != tmp[i]) {
				isDifferent = true;
				break;
			}
	} else
		isDifferent = true;

	if (isDifferent) { // it has changed
		outlet(0, tmp);
		lastThing = arrayfromargs(messagename, arguments); // it's easier  
to call arrayfromargs again to make the copy of the array
	}
}

ej