Сергей delphinpro

function f() { console.log(2) }
(function() {
    var f;
    f(); // f локальная и  сейчас undefined
    f = function() { console.log(1) } // и только тут в нее пишется ссылка на функцию
})();
f();

function f() { console.log(2) }
(function() {
    f(); // f функция из родительского скоупа
    f = function() { console.log(1) } // а тут она просто перезаписывается
})();
f();

$(function () {
    $('[data-toggle="ajax"]').on('submit', function (e) {
        e.preventDefault();
        let $form        = $(this);
        let $formLoading = $('.ajax-form__loading', $form);
        let $button      = $('[type="submit"]', $form);

        let data     = $form.serialize();
        let action   = $form.data('action') || $form.attr('action');
        let method   = $form.attr('method');
        let response = $form.data('response') || 'html';


        console.log('Response type: ', response);

        $button.attr('disabled', true);
        $formLoading.addClass('show');
        $form.trigger('beforeSend');

        $.ajax({
            url     : action,
            type    : method,
            data    : data,
            dataType: response
        }).then(function (data) {
            console.log('success', arguments);
            $formLoading.removeClass('show');
            $button.attr('disabled', false);
            $form.trigger('success', [data]);
        }).fail(function () {
            console.log('error', arguments);
            $formLoading.removeClass('show');
            $button.attr('disabled', false);
            $form.trigger('error');
        });
    });
});

function increase() {
            value += step;
            if (max < Infinity && value > max) value = max;
            $inp.val(value);
}

function decrease() {
            value -= step;
            if (value < min) value = min;
            $inp.val(value);
}

function repeatIncrease() {
            repeatTimeout = setTimeout(function () {
                repeatInterval = setInterval(increase, SPIN_INTERVAL);
            }, SPIN_DELAY);
}

function repeatDecrease() {
            repeatTimeout = setTimeout(function () {
                repeatInterval = setInterval(decrease, SPIN_INTERVAL);
            }, SPIN_DELAY);
}

$el.on('click', '.spin__button_increase', increase);
$el.on('click', '.spin__button_decrease', decrease);
$el.on('mousedown', '.spin__button_increase', repeatIncrease);
$el.on('mousedown', '.spin__button_decrease', repeatDecrease);
$el.on('mouseup mouseleave', '.spin__button', () => {
            clearTimeout(repeatTimeout);
            clearInterval(repeatInterval);
});

Какой смысл в throw?

где без this вообще никак?

function Arr() {
  this.name = "Stive",
  this.age = 29,
  this.all = function() {
    return this.name + " " + this.age;
  }
};

var arr = new Arr();
console.log(arr.all());

.owl-prev.disabled, .owl-next.disabled {
  display: none;
}

var fname=url.replace(/.+\//,"");
fname = 'd:\\path\\to\\file\\' + fname;