vscode.js

    // No
    elem.animate({height: "toggle", opacity: "toggle"},
    300, null, function() {
    }

    // Yes
    elem.animate({height: "toggle", opacity: "toggle"},
        300, null, function() {
    }

    // Even better
    elem.animate({height: "toggle", opacity: "toggle"},
                 300, null, function() {
    }