getElementBy获取Value JS(getElementBy to get Value JS)

getElementBy获取Value JS(getElementBy to get Value JS)

有人可以通过“3355”帮助提升价值吗？

<form action="http://www.ebest.cl/checkout/cart/add/uenc/aHR0cDovL3d3dy5lYmVzdC5jbC9hdWRpZm9ub3MtYWx0YS1maWRlbGlkYWQtaG91c2Utb2YtbWFybGV5LXJldm9sdXRpb24uaHRtbD9fX19TSUQ9VQ,,/product/3355/form_key/c2b66ca036853b1a/" method="post" id="product_addtocart_form"> <input name="form_key" type="hidden" value="c2b66ca036853b1a" /> <div class="no-display"> <input type="hidden" name="product" value="3355" /> <input type="hidden" name="related_product" id="related-products-field" value="" /> </div>

我会使用哪个getElementBy函数？

谢谢。

Can someone help pull the value with "3355"?

<form action="http://www.ebest.cl/checkout/cart/add/uenc/aHR0cDovL3d3dy5lYmVzdC5jbC9hdWRpZm9ub3MtYWx0YS1maWRlbGlkYWQtaG91c2Utb2YtbWFybGV5LXJldm9sdXRpb24uaHRtbD9fX19TSUQ9VQ,,/product/3355/form_key/c2b66ca036853b1a/" method="post" id="product_addtocart_form"> <input name="form_key" type="hidden" value="c2b66ca036853b1a" /> <div class="no-display"> <input type="hidden" name="product" value="3355" /> <input type="hidden" name="related_product" id="related-products-field" value="" /> </div>

Which getElementBy function would I use?

Thanks.

最满意答案

document.querySelector(".no-display > input[name=product]").value;

或更具体：

document.querySelector("#product_addtocart_form .no-display > input[name=product]").value; document.querySelector(".no-display > input[name=product]").value;

or more specific:

document.querySelector("#product_addtocart_form .no-display > input[name=product]").value;