An Introduction To A High-Performance JS Grid
Nowadays, a large amount of data keep generating in businesses, and sometimes they need to display that information on websites for the consumers. The common way of displaying data on a website is using an HTML table. However, showing a large amount of data in an HTML table is cumbersome, especially if it slows down the entire page load. Therefore, if you want to show a large amount of data in a table on your web page, using a grid is the best way to do that. A grid is similar to a table in HTML elements, but it allows you to easily fetch, scroll, sort, group, and filter a large number of data rows. When loading and processing large data sets, the performance is important because it should not hinder the user experience. A high-performing js grid has a good initial page load time which is the amount of time the grid takes to load the initial data set. It is also efficient in dynamic filtering or the time it takes to filter one column. In addition, when considering a large amount of data in a grid, users often need to scroll through various sections of the grid to see the rest of the data. This scrolling speed is a good indicator of grid performance, and high-performing grids have a good scrolling speed that amounts to seconds. Ext JS data grid is a high-performing grid that allows loading and manipulating a massive data set within milliseconds. In most benchmarking experiments, almost all the JS grid types from different vendors have shown good initial page load time and dynamic filtering speed. However, all those grids have shown a greater variation in scrolling speed, except when viewing the first few records of the grid. the Ext JS data grid has an outstanding scrolling speed which is 300x faster than other leading data grids, which can fetch and display massive sets of data in less than one second Ext JS grid consists of two parts which are Ext. data.Store and Ext.grid.The panel. The datastore represents the data and the set of columns in the grid to render. The data stores give Ext Js grids the capability to load data inline and load them dynamically on-demand. It also allows loading nested data, sorting, and filtering. The following example shows a simple data store specified in JSON data structure which will be loaded to Ext Js Grid. Ext.create(‘Ext.data.Store’, { storeId: “myProductStore”, fields: [‘productid’, ‘title’], data: [{ ‘productid’: ‘1’, “title”: “LindtChocalate” }, { ‘productid’: ‘2’, “title”: “Milk” },] }); Ext.grid.The panel is the key component that allows displaying a massive amount of tabular data on the client side. For example, the below code generates a simple grid with two columns. The grid will load the data we specified in the above-specified data store. The grid generated will consist of the columns specified below and the header title ‘Products .’ Under the title will show the data directly below the header title. var columns = [{ text: ‘productid’, dataIndex: ‘productid’, flex: 1 }, { text: ‘title’, dataIndex: ‘title’, flex: 1 }]; var grid = Ext.create(‘Ext.grid.Grid’, { title: ‘Products’, store: “myProductStore”, columns: columns, layout: ‘fit’, renderTo: document.body, width: ‘100%’, height: 300 }); Raw and Column operations, rendering, and scrolling Ext JS grid consists of a rich set […]
