JavaScript / HTML5のニュース

ラジオグループで有効なデータ入力を確保

12月 19, 2025
JavaScriptアプリケーションで直感的なラジオグループコントロールを使い、あらかじめ定義されたデータセットから単一の値を選択可能

A radio group in data editing refers to a set of mutually exclusive options presented as selectable buttons, where only one option can be active at a time. It is typically used in user interfaces to enforce a single selection from a predefined set of values, which helps reduce input errors and ensures data consistency. By visually grouping related choices and clearly indicating the selected value, a radio group simplifies decision-making for users and speeds up data entry. This control is especially useful in forms and configuration settings where a user must choose one valid option from several possibilities.

Several JavaScript data editor collections provide support for radio groups, including:

  • DevExtreme Angular Data Editors (part of DevExtreme Complete by DevExpress) lets you create radio groups with custom layouts, dynamic data binding, and intuitive selection.
  • KendoReact Data Editors (part of KendoReact by Telerik) provides fully accessible radio group components with flexible styling options and easy integration into React apps.
  • Infragistics Ignite UI for Angular Data Editors (part of Infragistics Ignite UI) offers configurable radio group functionality with straight-forward data mapping.
  • Syncfusion JavaScript Data Editors (part of Syncfusion Essential Studio Enterprise) includes customizable radio group controls for smooth interaction across major web frameworks.

For an in-depth analysis of features and price, visit our comparison of JavaScript data editors.

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リアルタイムのスプレッドシートコラボレーションを可能に

12月 19, 2025
SpreadJS 19は、複数のユーザーが同時に同じスプレッドシートを編集できる新しいサーバーアドオンにより、共同作業を追加サポート

SpreadJS is a JavaScript spreadsheet and data visualization component built to deliver Excel-compatible functionality within web applications. It provides a flexible, high-performance interface for displaying and manipulating tabular data, supporting advanced features such as formulas, pivot tables, charts, conditional formatting, and data binding. SpreadJS integrates smoothly with popular frameworks like React, Angular, and Vue, and includes robust import and export capabilities for Microsoft Excel files. It is commonly used in enterprise applications where users need a responsive, interactive spreadsheet experience directly in the browser.

The SpreadJS 19.0.0 update introduces a new Collaboration Server Add‑on that enables real‑time, multi‑user editing of the same spreadsheet within web applications by integrating the collaboration framework and server infrastructure directly into SpreadJS. This add‑on lets developers build functionality where multiple clients see and apply changes instantly to workbook data with consistent state across users, supports conflict‑free concurrent edits using Operational Transformation logic, and includes features such as live user presence and permission controls.

To see a full list of what's new in 19.0.0, see our release notes.

SpreadJS is licensed per developer and includes 1 Year Maintenance (major and minor version releases and unlimited support phone calls). SpreadJS requires an Annual or Perpetual Deployment License. The optional Add-ons are available at an additional cost, and require a SpreadJS license. See our SpreadJS licensing page for full details.

For more information, visit our SpreadJS product page.

目標駆動型バレットチャートで進捗を表示

12月 18, 2025
予算、予測、実際の値をコンパクトな弾条図で比較することで、ばらつきを即座に見つけ、目標達成の進捗を明確に追跡可能

Bullet charts are goal-oriented visualizations that compare actual performance against targets and benchmarks such as budget and forecast values in a single, easy-to-read view. They offer a clear alternative to gauges and meters by showing progress toward goals while making variances and shortfalls immediately obvious. By presenting multiple reference points together, bullet charts help stakeholders interpret performance quickly and consistently across metrics. Common use cases include financial reporting, sales and margin tracking, KPI dashboards, operational scorecards, and executive summaries where fast, reliable comparisons support better decision-making.

Several JavaScript chart controls offer bullet chart support including:

  • Highcharts Core by Highsoft lets you build bullet charts comparing performance against targets with interactive tooltips, responsive layouts, and customization.
  • KendoReact Charts (part of KendoReact by Telerik) allows you to render bullet charts, emphasizing KPIs, qualitative ranges, and accessibility-friendly components.
  • amCharts 5: Charts facilitates modern bullet charts with animated transitions, flexible axes, precise benchmarks, and theming for data-driven dashboards applications.
  • Syncfusion JavaScript Charts (part of Syncfusion Essential Studio Enterprise) lets you create bullet charts showcasing targets, ranges, and actuals.

For an in-depth analysis of features and price, visit our JavaScript bullet chart controls comparison.

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仮想スクロールで大規模データグリッドを最適化

12月 17, 2025
ユーザーが見えるものだけをレンダリングすることで、速度を最大化し、メモリ使用を減らし、どのスケールでもグリッドの相互作用を滑らかに保持

Virtual scroll support in a grid component is a rendering strategy that displays only the rows and columns currently visible in the viewport while dynamically loading and unloading data as the user scrolls. It minimizes DOM size and memory usage by avoiding the creation of off-screen elements, which improves rendering speed, reduces layout thrashing, and maintains smooth interaction even with very large datasets. This approach enables grids to handle millions of records efficiently without requiring pagination, lowers CPU and GPU load, and delivers consistent performance across a wide range of devices.

Several React grid controls offer virtual scroll capability including:

  • DevExtreme React Data Grid (part of DevExtreme Complete by DevExpress) lets you render only visible records offering excellent performance for displaying thousands of data rows.
  • KendoReact Data Grid (part of KendoReact by Telerik) allows you to virtualize grid content for rapid scrolling and reduced DOM overhead with large datasets.
  • Wijmo React DataGrid (FlexGrid) (part of Wijmo by MESCIUS) facilitates virtual scrolling that loads data on demand, minimizing rendering work and preserving fluid navigation.
  • Infragistics Ignite UI for React Data Grid (part of Infragistics Ignite UI) enables row and column virtualization to significantly boost performance for large datasets.

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

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アニメーションのトランジションでチャートの明瞭付加

12月 15, 2025
滑らかなアニメーションを備えたWeb Componentsチャートは、データ変更をより簡単に見やすくし、複雑なビジュアルでもユーザーが集中力を保つことが可能

Animation in a Web Components Chart control refers to the visual transitions applied to chart elements as data is rendered, updated, or interacted with. It enhances the user experience by making changes in the data more perceptible and easier to follow, particularly when dealing with dynamic or real-time datasets. For developers, animation helps improve data readability and provides a more engaging and polished interface, especially when charts are updated frequently or involve user interaction. It also makes it easier for users to track what’s changed in the chart, even when the visuals are complex.

Several Web Components chart controls offer animation including:

  • Wijmo Web Components Chart (part of Wijmo Enterprise by MESCIUS) lets you animate chart updates smoothly, helping users clearly follow dynamic data transitions.
  • jQWidgets Chart facilitates animated rendering and transitions, making it easier to present changing data visually without overwhelming the user.
  • Ignite UI Web Components Chart (part of Infragistics Ignite UI) allows you to add refined animation effects, enhancing visual feedback during data changes.
  • ZingChart supports flexible animation options, enabling developers to create dynamic visualizations that respond intuitively to updates and user interaction.

For an in-depth analysis of features and price, visit our comparison of Web Components Chart Controls.

Compare Web Components Chart Controls