jQuery pitfalls to avoid [closed]

Answer 1

Passing IDs instead of jQuery objects to functions:

myFunc = function(id) { // wrong!
    var selector = $("#" + id);
    selector.doStuff();
}

myFunc("someId");

Passing a wrapped set is far more flexible:

myFunc = function(elements) {
    elements.doStuff();
}

myFunc($("#someId")); // or myFunc($(".someClass")); etc.