local-storage | 易学教程

Angular 7 Guard redirection only works on double click

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问题 THe problem is that I've implemented a Guard, meant to work with a specific directory . It should return true if the role of the current username equals 2 . If it doesn't then it shouldnt redirect. THis is my app-routing-module.ts file , the problem is in the 'userlist' path, were we implement the [RoleGuard] canActivate import { NgModule } from '@angular/core'; import { CommonModule } from '@angular/common'; import { Routes, RouterModule, Router } from '@angular/router'; import {

Saving objects in localStorage which has a method

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问题 The problem is that I am saving projects, which are made with project factory function. The projects also have addToDo method and I am saving this projects into myProjects array. I am struggling with, that when my projects are saved or retrieved to/from localStorage, they loose functionality (addToDo method). As after page refresh I can't add todos to the projects anymore. So I guess that method of project factory isn't saved to localStorage. Thanks. let newProject; let myProjects =

Why aren't my localStorage inputs persistent across pages on my personal computer?

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问题 I'm trying out the HTML5 localStorage method for saving data. As I understand it, localStorage should be persistent between pages within the same domain. Please correct me if I'm wrong. However, for some reason, it appears my localStorage values aren't persisting between pages in the same directory on my computer. Is it not considered the same domain in this case? I'm a little lost. Here's the code for the two documents in question: Document 1 (assuming jQuery has been included elsewhere in

Why aren't my localStorage inputs persistent across pages on my personal computer?

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Change theme and store it in local storage

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问题 I have two themes "dark" and "light", and I want the theme to change when clicking the checkbox. This is how I changed the theme: document.documentElement.setAttribute('data-theme', 'dark'); And now, this is working. But I want this change to be saved in local storage, thus even after reloading the page, the theme to stay as it is without changing. here is my code: checkBox.addEventListener('change', function () { if(this.checked) { document.documentElement.setAttribute('data-theme', 'dark');

How to store form data in local storage?

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问题 I am implementing one form submit process, But I am not using any DB(Backend). I want to store form data in client side or browser. So I am planning to use localstorage. <html> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script

Chrome App localStorage not persisting and chrome.storage not working

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问题 I have a chrome Kiosk App which I need to save data (a few bytes as a string) between the machine turning on and off. But what ever I try, the localStorage seems to be wiped on restart. When I go to chrome://inspect/#apps to inspect the Chrome App, there are no related errors in the console regarding to LocalStorage Within Chrome in a browser, I would simply use localStorage but this does not persist when in a Kiosk App. Example of code: window.localStorage.setItem(id, temp); window

Chrome App localStorage not persisting and chrome.storage not working

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How would you count a user's accumulated visits to your site client-side?

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问题 I want to keep track how many times a user has visited my site/domain. For example, say I wanted to display a message to the user after their 10th visit to the site. Each pageload should not count as a new visit. A visit in this case is more like a session. Browse all you want in one sitting, that's one visit. Close your browser and come back, that's a second visit. I thought it would be good to do this by utilizing localStorage and sessionStorage. I put a value in sessionStorage to show that

Store users choice of CSS-style with local storage (How?)

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问题 The user can choose between 4 different themes (4 different CSS-files) by clicking links. The users choice should be saved (and somehow selected by being bold for example) in local storage and the chosen CSS-style should then be loaded when the user opens up the webpage. The choice should be stored for at least a week. I am completely new to local storage so I am uncertain of how I should approach this. As far as I understand, localStorage.setItem , localStorage.getItem and onChange() should