session-storage

问题 What are the technical pros and cons of localStorage, sessionStorage, session and cookies, and when would I use one over the other? 回答1: This is an extremely broad scope question, and a lot of the pros/cons will be contextual to the situation. In all cases, these storage mechanisms will be specific to an individual browser on an individual computer/device. Any requirement to store data on an ongoing basis across sessions will need to involve your application server side - most likely using a

问题 What are the technical pros and cons of localStorage, sessionStorage, session and cookies, and when would I use one over the other? 回答1: This is an extremely broad scope question, and a lot of the pros/cons will be contextual to the situation. In all cases, these storage mechanisms will be specific to an individual browser on an individual computer/device. Any requirement to store data on an ongoing basis across sessions will need to involve your application server side - most likely using a

问题 I've a requirement where I need to identify if any page is storing or reading from HTML5 data stores. I am using HTMLUnit to scrape through webpages. I checked in the sourceforge listing that the support for HTML5 storages has been built. Does HTMLUnit actually create objects for localStorage, sessionStorage etc? If yes, how can I access them? I've also thought of scraping all Javascripts on the page and search for the keywords, but is there any better method than that? 回答1: a simple test

问题 here is example of my data that I get after ajax call response is successful obj.DATA looks like this: { "A43D": { "FIRSTNAME": "Mike", "EMAIL": "mjohns@gmail.com", "LASTNAME": "Johns" }, "4E83": { "FIRSTNAME": "Steve", "EMAIL": "scook@gmail.com", "LASTNAME": "Cook" } } $.ajax({ type: 'POST', url: 'AjaxFunctions.cfc?method=getCustomers', data: formData, dataType: 'json' }).done(function(obj){ console.log(obj.DATA); sessionStorage.setItem("customersData", JSON.stringify(obj.DATA)); }).fail

问题 I was under the assumption that sessionStorage gets instantiated after a component has been mounted and one can access it through a componentDidMount call. I am using this script to preserve my sessionStorage through different tabs: (function() { if (!sessionStorage.length) { // Ask other tabs for session storage localStorage.setItem('getSessionStorage', Date.now()); }; window.addEventListener('storage', function(event) { if (event.key == 'getSessionStorage') { // Some tab asked for the

问题 This is my HTML: <select> <option value="val1">Text1</option> <option value="val2">Text2</option> <option value="val3">Text3</option> <option value="val4">Text4</option> </select> It is being dynamically populated via $.ajax() I need to make a function that will place "val" in key and Text in " value " in the sessionStorage , as the object reference. How can I achieve this? How would it be iterated via index ? My try: document.getElementsByClassName('next')[0].addEventListener('click',

问题 I am very new to this topic so it might be a simple question but I could not answer it by googling. I have two HTML files and a javascript file (see below). The first HTML file contains an input field where an user can enter a temperature in degree celcius. This number is then converted to the temperature in Kelvin using a javascript function called "convTemp". Problem is the output. I would like to get the result printed on both HTML pages (in "< p id="output" > text to be replaced < /p >")

问题 sessionStorage is great for easily and quickly saving session-related data for the lifetime of a web page session. However, when a browser tab is closed, but then re-opened by anybody with access to the "Recent Tabs" section of a browser, they can once again access the session data. Is there any way to flag some session storage data as "not to be saved when the tab is restored" or should I try something else? For example, will a session cookie perform more safely in this instance? 回答1: Use a

问题 This question already has answers here : Cannot set boolean values in LocalStorage? (8 answers) Closed 3 years ago . The following code $(document).ready(function(){ sessionStorage.test = false; alert( sessionStorage.test ); if ( sessionStorage.test ) { alert("I dont care about your conditions!"); } }); produces the following popups: false I dont care about your conditions! even though sessionStorage.test is clearly set to false. Why is that the case? According to this answer https:/

问题 The standard W3C standard says about localStorages: Different authors sharing one host name, for example users hosting content on geocities.com , all share one local storage object. There is no feature to restrict the access by pathname. Authors on shared hosts are therefore urged to avoid using these features, as it would be trivial for other authors to read the data and overwrite it. But for sessionStorages it's said that it does provide separate sessionStorages for tabs and windows even