Posts Tagged ‘overwriting’

Self-overwriting functions

Tuesday, September 15th, 2009

Next pattern a function that overwrites itself, a self-redefining function. Pretty similar to functions that return functions, but this time the function is re-implemented from the inside, not returned.

function next() {
    var count = 1;
    next = function() {
        return ++count;
    };
    return count;
}
 
next(); // 1
next(); // 2