localstorage

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Im creating a chrome extension for Rss reader in that im getting the above error. please help manifest.json { "name": "Tutorialzine Extension", "manifest_version": 2, "version": "1.1", "description": "Making your first Google Chrome extension.", "icons": { "128": "icon_128.png" }, "web_accessible_resources": ["script.js", "https://query.yahooapis.com"], "browser_action": { "default_icon": "icon.png", "default_popup": "tutorialzine.html" }, "permissions": ["tabs", "<all_urls", "http://localhost/", "http://*/*", "https://*/*", "https://query

改进的离线存储 localForage 是一个 JavaScript 库，通过简单类似 localStorage API 的异步存储来改进你的 Web 应用程序的离线体验。它能存储多种类型的数据，而不仅仅是字符串。 localForage 有一个优雅降级策略，若浏览器不支持 IndexedDB 或 WebSQL，则使用 localStorage。在所有主流浏览器中都可用：Chrome，Firefox，IE 和 Safari（包括 Safari Mobile）。 localForage 提供回调 API 同时也支持 ES6 Promises API，你可以自行选择。 安装 使用 localForage，请 下载最新版本 或使用 npm（npm install localforage）或 bower（bower install localforage）进行安装。 然后，只需包含 JS 文件即可使用 localForage：。你不需要运行任何初始化方法或等待 onready 事件。 API数据 GETITEM getItem(key, successCallback) 从仓库中获取 key 对应的值并将结果提供给回调函数。如果 key 不存在，getItem() 将返回 null。 ** 当存储 undefined 时， getItem() 也会返回 null。由于

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am working on an app that heavily uses JavaScript. I am attempting to include some object-oriented practices. In this attempt, I have created a basic class like such: function Item () { this . init (); } Item . prototype = { init : function () { this . data = { id : 0 , name : "" , description : "" } }, save : function () { alert ( "Saving..." ); $ . ajax ({ url : getUrl (), type : "POST" , data : JSON . stringify ( this . data ), contentType : "application/json" }); } } I am creating Item instances in my app and then saving them

本文转载于: 猿2048 网站➫ https://www.mk2048.com/blog/blog.php?id=hiccchaaaa React高级组件精讲 高阶函数是以函数为参数，并且返回也是函数的的函数。类似的，高阶组件（简称HOC）接收 React 组件为参数，并且返回一个新的React组件。高阶组件本质也是一个函数，并不是一个组件。高阶组件的函数形式如下： const EnhanceComponent = higherOrderComponent(WrappedComponent) 通过一个简单的例子解释高阶组件是如何复用的。现在有一个组件MyComponent，需要从LocalStorage中获取数据，然后渲染到界面。一般情况下，我们可以这样实现: import React, { Component } from 'react' class MyComponent extends Component { componentWillMount() { let data = localStorage.getItem('data'); this.setState({data}); } render() { return( <div>{this.state.data}</div> ) } } 代码很简单，但当其它组件也需要从LocalStorage 中获取同样的数据展示出来时

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using Backbone.LocalStorage plugin with backbone app. It is working fine in chrome and safari however, it is giving me below error in firefox. DOMException [SecurityError: "The operation is insecure." code: 18 nsresult: 0x80530012 location: http://localhost:8000/js/libs/backbone.localStorage/backbone.localStorage.js?version=1453910702146:137] I am using python simpleHttpServer How can I resolve this error? UPDATE Here is my code. paths: { 'jquery' : 'libs/jquery/dist/jquery', 'underscore' : 'libs/underscore/underscore', 'backbone' :

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to save a variable called persistent_data . I usually use session[:persistent_data] or cookies[:persistent_data] , but I would like to use the localstorage instead. How do I do that on Rails? 回答1: Localstorage has nothing to do with rails. You do it the same way as with any other language: <script> localStorage.setItem("company_id", "1"); </script> localStorage.getItem("company_id"); => 1 You can use rails to dynamically set the item however: <script> localStorage.setItem("company_id", "<%= @company.id %>"); </script> 回答2: As far

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Are there any libraries out there to mock localStorage ? I've been using Sinon.JS for most of my other javascript mocking and have found it is really great. My initial testing shows that localStorage refuses to be assignable in firefox (sadface) so I'll probably need some sort of hack around this :/ My options as of now (as I see) are as follows: Create wrapping functions that all my code uses and mock those Create some sort of (might be complicated) state management (snapshot localStorage before test, in cleanup restore snapshot) for

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am trying to keep selected tab active on refresh with Bootstrap 3 . Tried and checked with some question already been asked here but none of work for me. Don't know where I am wrong. Here is my code HTML <!-- tabs link --> <ul class = "nav nav-tabs" id = "rowTab" > <li class = "active" ><a href = "#personal-info" data-toggle = "tab" > Personal Information </a></li> <li><a href = "#Employment-info" data-toggle = "tab" > Employment Information </a></li> <li><a href = "#career-path" data-toggle = "tab" > Career Path </a></li> <li><a

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to save a image to localstorage and fetch the same back when is required,am confused on how to save a image as i have referred question related to my same question but they are complicated, Finally i got some thing which looks perfect to me but i am confused how to use the code to save the image on local storage Hear is the code in JSFIDDEL Html: JS: bannerImage = document.getElementById('bannerImg'); imgData = getBase64Image(bannerImage); localStorage.setItem("imgData", imgData); function getBase64Image(img) { var canvas =

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: So I'm currently busy with learning JavaScript. I created some dynamic buttons and I tried to add an addEvenListener to it. But it doesn't work and I can't figure it out why it doesn't work. I'm just testing some stuff and I try to create buttons with values from the localstorage. It is almost working, only the addEvenListener isn't working. I just want a simple alert with the key from the localstorage. for (var i = 0; i <= localStorage.length-1; i++) { var categoryButton = document.createElement('input'); categoryButton.setAttribute('class'