Notícias sobre JavaScript / HTML5

Crie um poderoso aplicativo leitor de PDF Angular

Março 15, 2024
Aprimore seus aplicativos Angular com leitura de PDF integrada usando o Kendo UI for Angular PDF Viewer, sem a necessidade de plug-ins adicionais.

Kendo UI by Telerik is a comprehensive suite of JavaScript UI components offered in versions for jQuery, Angular, React, and Vue. It provides developers with over 110 pre-built widgets and tools to streamline the creation of modern, responsive, and feature-rich web applications, while maintaining a consistent API and theming across frameworks for a cohesive user experience.

This Telerik blog post by Dany Paredes explains how to integrate the Kendo UI Angular PDF Viewer into your web applications and customize how users interact with PDFs, enhancing the user experience or even restricting downloads in specific scenarios. Steps include:

  • Setting up the initial Project parameters
  • Defining the Layout and Interface for both Users and the PDF Viewer
  • Configuring the Reader Service to remember where the User left off
  • Binding Assets to the Kendo PDF Viewer
  • Handling Events
  • Working with the Kendo UI PDF Viewer Toolbar

Kendo UI for Angular PDFViewer provides out-of-the-box functionalities like toolbar customization and event handling, allowing you to quickly build a feature-rich PDF Viewer with minimal code.

View the full blog to learn these valuable techniques.

Kendo UI is licensed per developer and is available as a perpetual license with a 1 year support subscription, which is available in 3 tiers: Lite, Priority or Ultimate. See our Kendo UI licensing page for full details.

Kendo UI is available to buy in the following products:

Domine a codificação JavaScript com o poder da IA

Março 14, 2024
Simplifique o desenvolvimento com Sencha Ext JS usando ChatGPT para criar, sem esforço, aplicativos JavaScript interativos avançados.

Sencha Ext JS is a comprehensive JavaScript framework for building data-intensive, cross-platform web and mobile applications for any modern device. Ext JS includes 140+ pre-integrated and tested high-performance UI components such as HTML5 calendar, grids, pivot grid, D3 adapter, trees, lists, forms, menus, toolbars, panels, windows, and much more.

In this blog post by Sencha Sales Engineer Andres Villalba you will learn the steps to use the power of ChatGPT to unlock your Ext JS potential. This includes:

  • Building Data
  • Stores and Models
  • Updating the Navigation
  • Creating a Chart
  • Displaying information in a Grid

The article also links to a recording of Andres's full session at JS Days, so you can watch as he takes you through the process, step by step.

Read the complete blog and find out how to save development time when building your next Ext JS JavaScript with ChatGPT.

Sencha Ext JS is available in Pro, Enterprise and Ultimate editions, as Annual Subscription or Perpetual Licenses. See our Sencha Ext JS licensing page for full details.

For more information, see our Sencha Ext JS product page.

Otimize as atualizações de células com o re-render inteligente

Março 13, 2024
O Handsontable 14.2.0 agora usa memoização para evitar re-renders desnecessários após interações do usuário, como edição de célula ou rolagem.

Handsontable is a JavaScript library designed to help developers build interactive data grids into their web applications. Offering a familiar spreadsheet-like interface, it allows users to edit, sort, and filter data with ease. Highly customizable and compatible with popular frameworks like React and Angular, Handsontable empowers developers to build robust data manipulation features into their web applications.

Handsontable 14.2.0 improves cell re-rendering using the React wrapper. The wrapper now uses memoization to optimize performance during user interactions like cell editing or scrolling in the grid, allowing the wrapper to remember the previous state and only update the elements that have actually changed. This smarter approach results in a smoother and more stable experience in your Handsontable apps, especially for complex custom cell types.

To see a full list of what's new in version 14.2.0, see our release notes.

Handsontable is licensed per developer and is available as an Annual or Perpetual license with 1 year support and maintenance. See our Handsontable licensing page for full details.

For more information, visit our Handsontable product page.

Realce visualmente elementos de dados críticos

Março 12, 2024
Melhore a visualização de dados e a experiência do usuário chamando a atenção para dados importantes da grade do React com formatação condicional.

Conditional formatting in a grid allows you to dynamically alter the visual style of cells based on specific criteria within your data. This functionality enhances readability and user experience by highlighting important information. For instance, negative values can be displayed in red, exceeding values in bold, and empty cells with a light gray background, all within the grid itself. This reduces the need for users to manually scan through data and immediately draws attention to critical elements.

Several React grid controls offer conditional formatting, including:

  • KendoReact Data Grid (part of KendoReact by Telerik) facilitates applying custom styles and colors to grid cells based on data conditions.
  • Wijmo FlexGrid (part of Wijmo by MESCIUS) empowers developers to implement conditional formatting rules for visual data analysis in React apps.
  • Handsontable by Handsoncode enables the creation of data grids with dynamic cell formatting dependent on specific values.
  • jQWidgets Grid (part of jQWidgets) offers conditional formatting capabilities to highlight patterns and trends within React data grids.
  • Syncfusion Grid (part of Syncfusion Essential Studio Enterprise) provides conditional formatting rules to enhance grid data visualization.

For an in-depth analysis of features and price, visit our comparison of React Grid controls.

Compare React Grid Controls

Crie um aplicativo de meteorologia React com medidores Wijmo

Março 12, 2024
Saiba como criar um aplicativo de componente baseado em função React que busca informações meteorológicas da API OpenWeatherMap.

Wijmo is a complete collection of extensible, fast, flexible JavaScript UI components written in TypeScript. The framework-agnostic Wijmo components include first-class support for top frameworks including Angular, React, Vue and Web Components. Wijmo Enterprise has over 100 dynamic JavaScript UI components to help cut your development time in half, allowing you to build lightweight, high-performance JavaScript applications using your favorite JavaScript framework.

In this blog post, MESCIUS Technical Engagement Engineer Andrew Peterson shows you how to utilize the Wijmo Gauges - along with the OpenWeatherMap API - to build a React app to display the current weather. Steps include:

  • Setting up the React app
  • Installing Packages
  • Getting the OpenWeatherMap API Key
  • Creating the Weather Component
  • Integrating WeatherComponent into the App
  • Adding the Wijmo Gauge and Styling

Read the complete blog to explore this powerful and rich capability.

Wijmo is licensed per developer. Developer Licenses are perpetual and include 1 year Subscription which provides upgrades, including bug fixes and new features. See our Wijmo licensing page for full details.

For more information, visit our Wijmo product page.