Since the latter examples are under the browser's control, this method may be more useful on the server or for unit-testing. If the first argument,dbNameis missing (ornullorundefined), all connections to all databases will be force-closed. ...
TrialTool- For experimenting with IndexedDB commands, including predefined examples. (Some examples may depend on others previously being run, even with "Load Pre-Requisites" added, but it is nevertheless useful to avoid boilerplate in testing out commands, in conjunction with the browser developer ...
Do not include the script directly from GitHub (http://raw.github.com/...). The file is being served as text/plain and as such being blocked in Internet Explorer on Windows 7 for instance (because of the wrong MIME type). Bottom line: GitHub is not a CDN. Package Managers JavaScript ...
<!DOCTYPE html> localStorage 本地存储 localStorage 本地存储 添加 取值 d02.html var msg=document.getElementById("msg"); //添加 function add_click() { //向本地存储中添加一个名为name,值为"手机"的key-value对象 localStorage.setItem("name","手机"); //办法2 localStorage["price"]=...
A database which had already been battle-tested on mobile devices, i.e. the place where performance matters. A database which, let’s not forget, is also open-source. Now what we have instead is IndexedDB, which basically lets you store key/value pairs, where the values are JavaScript ...
HTML5 indexedDB是一种在浏览器中存储和检索结构化数据的API。它提供了一个客户端数据库,可以在浏览器中存储大量数据,而无需依赖于服务器。 在indexedDB中,可以使用索引来加快数据的检索速度。为了查找MAX(日期),我们可以按照以下步骤进行: 打开indexedDB数据库连接。 indexedDB.open(databaseName, version):打开指...
Safari 3.1 (includes Mobile Safari)Different browsers have different storage limits, so plan accordingly.Note that, thanks to WebSQL support, apps packaged with Phonegap will also use asynchronous storage. Pretty slick!SupportLost? Need help? Try the localForage API documentation.If...
Here are two examples: objectStore.createIndex("gender", "gender", {unique:false}); objectStore.createIndex("ssn", "ssn", {unique:true}); The first index is on gender and, as you can imagine, allows you to fetch data based on a person’s gender. The second index is based on a ...
Since the latter examples are under the browser's control, this method may be more useful on the server or for unit-testing. If the first argument, dbName is missing (or null or undefined), all connections to all databases will be force-closed. If the second argument, connIdx is missing...
AlaSQL - ( à la SQL ) [ælæ ɛskju:ɛl] - is an open source SQL database for JavaScript with a strong focus on query speed and data source flexibility for both relational data and schemaless data. It works in the web browser, Node.js, and mobile apps....