javascript set variables callback - callback a function everytime some variable value changes without register a observer

Asked Jan 13 '12 at 12:50

Active Jan 23 '12 at 19:13

Viewed 224 times

I want to know if is there a way to access the structure of prototype or json or some javascript internal api...

for call a function when a variable changes, then I will be able to do this:

var subject = 1;

whenChanges(subject, function(newvalue){
    alert("subject value changes to: "+ newvalue);
});

subject = 2; //now we call the callback function declared before

I dont want to call this only when changing the variable by a setter and want to monitore all the variables

EDIT:

well, I implemented a fork of object.watch library that can be downloaded here: http://watch.k6.com.br

edited Jan 23 '12 at 19:13

asked Jan 13 '12 at 12:50

melanke

1

Try this previous post: http://stackoverflow.com/questions/1759987/detect-variable-change-in-javascript – Skyrim Jan 13 '12 at 12:55
It cannot be done for a `var` though (unless you use some really ugly polling mechanism with `eval`) – user123444555621 Jan 13 '12 at 14:49

javascript set variables callback - callback a function everytime some variable value changes without register a observer

0 Answers0