- whenReady is syntactic sugar for creating an arbitrary conditional polling
callback mechanism using the Command and Observer patterns. it is configurable, meaning you can pass in
the callback. cb : f(){} (req)
the condition to satisfy before callback. condition : f(){} (req)
the polling interval. pollInterval : # (opt)
number of retries before giving up retryCount : # (opt)
the callback arguments cbArgs : [] (opt)
the arguments passed to the condition conditionArgs : [] (opt)
// when element <div id='slowNDumpy'></div> is loaded dynamically, it will
// receive the class fast_n_snappy
whenReady({
cb: function(slowNDumpy) {
slowAndDumpy.className = 'fast_n_snappy';
},
condition: function() {
var someElem;
if (someElem = document.getElementById('slowNDumpy')) {
return someElem;
}
return false;
}
})();
- you can also create a whenReady function and use it later, useful when
you have a lof of callback chaining
// when element <div id='slowNDumpy'></div> is loaded dynamically, it will
// receive the class fast_n_snappy
var doStuff = whenReady({
cb: function(slowNDumpy) {
slowAndDumpy.className = 'fast_n_snappy';
},
condition: function() {
var someElem;
if (someElem = document.getElementById('slowNDumpy')) {
return someElem;
}
return false;
}
});
// wait a second, then start the whenReady polling
setTimeout(doStuff, 1000);