Nouvelles JavaScript / HTML5

Suivez les indicateurs essentiels avec des données de jauge en temps réel

Avril 17, 2026
Présentez les données essentielles avec des graphiques de type jauge qui montrent clairement les valeurs actuelles et facilitent la détection des changements et des tendances au fil du temps.

Gauge charts are data visualizations that display a single value within a defined range, making it easy to understand status or progress at a glance. Often styled like a speedometer, they show where a value sits between minimum and maximum thresholds, using color to indicate different levels. This provides clear, immediate insight without detailed analysis. Key benefits include quick understanding, intuitive design, and strong visual emphasis on limits or targets. Gauge charts are commonly used in dashboards to track KPIs, monitor targets, show completion percentages, or highlight key metrics in a simple and effective way.

Several React charting components also offer gauges, including:

  • DevExtreme React Chart (part of DevExtreme Complete by DevExpress) lets you create responsive gauge charts that display values within ranges, helping visualize thresholds.
  • Highcharts Core allows you to build interactive gauge charts with smooth animations and custom styling to present key values in an intuitive format.
  • FusionCharts Suite XT facilitates rich gauge charts with clear indicators and flexible configurations, making it easy to communicate values and ranges visually.
  • JSCharting lets you design versatile gauge charts that highlight data within defined limits, supporting clear visual feedback and easy interpretation.

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

Compare React Chart Components

Importez et exportez des fichiers Excel XLSX en utilisant JavaScript

Avril 17, 2026
Parcourez ce tutoriel en ligne pour apprendre à utiliser SpreadJS afin d’ouvrir et d’enregistrer des feuilles de calcul sans qu’Excel soit installé.

SpreadJS is a complete enterprise JavaScript spreadsheet solution used to create financial reports and dashboards, budgeting and forecasting models, scientific, engineering, healthcare, education, science lab notebooks, and other similar JavaScript business applications. Leverage the high-speed calculation engine with over 500 Excel built-in functions in 19 languages, to deliver true Excel-like spreadsheet experiences with zero dependencies on Excel.

In this online tutorial from MESCIUS, you will learn the critical steps allowing you to import/export XLSX files using JavaScript. Steps include:

  • Set up the JavaScript Spreadsheet Project
  • Add Excel import code
  • Add Excel export code
  • Include extra features, such as Charts, Shapes, and PivotTables

Detailed sample code is included to help you along the way.

View the tutorial now and get started working with spreadsheet files in your JavaScript applications.

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.

Mettez en évidence les principales idées grâce à la mise en forme conditionnelle

Avril 16, 2026
Améliorez la visibilité des données avec un formatage conditionnel dans les grilles, en utilisant des indices visuels pour mettre en avant des motifs et anomalies importants.

Conditional formatting in grids automatically applies visual styles such as colors or icons based on defined rules, making it easier to interpret large datasets at a glance. It improves readability, highlights patterns and outliers, and supports faster, more informed decision making by surfacing key insights in real time. Common use cases include flagging budget issues in financial reports, emphasizing top performing sales data, monitoring KPIs, and drawing attention to errors or critical statuses in operational tools.

Several JavaScript grid controls offer conditional formatting, including:

  • KendoReact Data Grid (part of KendoReactby Telerik) lets you apply conditional formatting rules to style cells, highlighting trends, outliers, and key values for better insights.
  • FusionGrid by FusionCharts facilitates real time conditional formatting in large datasets, helping users quickly spot trends, exceptions, and performance indicators.
  • Handsontable by Handsoncode allows you to visually emphasize important data using conditional formatting, improving readability and enabling faster identification of patterns.
  • ZingGrid lets you customize conditional formatting rules to automatically highlight critical data points, enhancing usability and supporting faster, more informed decision making.

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

Compare JavaScript Grid Controls

Accélérez le développement avec Angular 21

Avril 10, 2026
Wijmo 2026 v1 prend en charge Angular 21 avec des composants intégrés qui accélèrent le développement et débloquent des capacités avancées.

Wijmo by MESCIUS is a comprehensive JavaScript library offering a suite of high-performance UI components and data grids specifically designed to streamline the development of modern enterprise applications. It emphasizes reduced development time and improved maintainability, along with a focus on performance through its efficient design and small module size. Wijmo integrates seamlessly with popular JavaScript frameworks like Angular, React, and Vue.js, and supports cutting-edge technologies like TypeScript, making it a versatile solution for building complex web applications.

The Wijmo 2026 v1 update introduces support for Angular 21, enabling developers to adopt the latest framework capabilities while maintaining full compatibility with Wijmo’s comprehensive component library. This support ensures smoother integration, improved application performance, and alignment with current Angular development standards. Developers can build more responsive and maintainable applications while benefiting from advanced features such as FlexGrid cell templates and a high performance Angular DataGrid, helping deliver modern user experiences more efficiently.

To see a full list of what's new in 2026 v1, see our release notes.

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.

Learn more on our Wijmo product page.

Empêchez les modifications indésirables de grille

Avril 9, 2026
Les grilles JavaScript avec colonnes en lecture seule aident les développeurs à sauvegarder les valeurs fixes tout en rendant les règles d’édition plus claires dans toute l’interface.

Read-only Columns are grid columns configured to display data without allowing users to edit the values directly in the interface. In a JavaScript grid control, this is typically used for fields that should remain fixed, such as calculated values, identifiers, audit data, or information controlled by business rules or backend processes. The main benefit is that it helps preserve data integrity while still making important information visible, reduces the risk of accidental changes, supports clearer editing workflows by distinguishing editable and non-editable fields, and makes it easier for developers to enforce validation and permission requirements consistently across the application.

Several JavaScript grid controls offer support for Read-only Columns including:

  • Highcharts Grid Pro lets you configure non-editable columns for protected values, helping preserve data integrity while keeping reference fields consistently visible.
  • Kendo UI Angular Grid allows you to control column editable status, keeping selected fields read-only to enforce rules and reduce accidental changes.
  • Wijmo React DataGrid (FlexGrid) facilitates read-only column scenarios through editing controls and events, supporting protected fields and condition-based restrictions.
  • DataGridXL allows you to set columns as read-only, preventing edits to protected data while preserving fast spreadsheet-like interaction.
  • Handsontable lets you lock selected grid cells from editing, preserving displayed values while still supporting sorting, filtering, validation, and spreadsheet-style navigation.
  • JSpreadsheet Pro lets you mark columns or cells as read-only, protecting fixed values while allowing editable data elsewhere.

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

Compare JavaScript grid controls