如何在浏览网页时保存信息？

Question

How would I keep the information in a shopping cart if I move through pages, without the info being refreshed? Is it possible with just JavaScript?

Answer 1

You can use sessionStorage or localStorage to save some data in the browser if you just want to use Javascript. https://javascript.info/localstorage

Answer 2

You can use javascript cookies. For set cookies you can use a function like this:

 function setCookie(cname, cvalue, exdays) { var d = new Date(); d.setTime(d.getTime() + (exdays*24*60*60*1000)); var expires = "expires="+ d.toUTCString(); document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/"; }

And for read your cookie in other pages you can use this function:

 function getCookie(cname) { var name = cname + "="; var decodedCookie = decodeURIComponent(document.cookie); var ca = decodedCookie.split(';'); for(var i = 0; i <ca.length; i++) { var c = ca[i]; while (c.charAt(0) == ' ') { c = c.substring(1); } if (c.indexOf(name) == 0) { return c.substring(name.length, c.length); } } return ""; }

Also, I suggest you read this link for more details.