Method Array.callbackOr
Summary:
Iterates through an array passing a core element and the array indexed value to a callback, performing a logical or of all callback results.
- Calling Convention:
-
Array.callbackOr(Element, callback) - Parameters:
-
- Element
- An element passed to the callback
- callback
- The callback function to be called. Should return a boolean true or false.
- Returns:
- True if any single callback returned true
- False if ALL callback returned false
Example -- recursivly check for and add class names from array
JavaScript
function classAdd(element, names) {
if (names instanceof Array)
return names.callbackOr(element, classAdd);
if (!classExists(element, names)) {
element.className += (element.className ? ' ' : '') + names;
return true;
}
return false;
}