microsoft/roosterjs
Oct 2024 – May 2026
19 Months active
Languages Used
JavaScriptTypeScriptHTMLReactCSSSCSSYAMLBash
Technical Skills
Code RefactoringContent ModelDOM ManipulationEditor DevelopmentFront-end DevelopmentTesting
Jiuqing Song
PROFILE
Jiuqing Song
Over 19 months, contributed to microsoft/roosterjs by building and refining advanced content editing features, focusing on editor reliability, content modeling, and developer tooling. Delivered robust solutions such as find-and-replace, granular formatting APIs, and secure paste handling, while enhancing table editing, list formatting, and clipboard workflows. Applied TypeScript and React to implement modular plugins, optimize DOM manipulation, and enforce type safety. Improved CI/CD pipelines and automated publishing with GitHub Actions, and strengthened security through XSS prevention and HTML sanitization. The work emphasized maintainability, test coverage, and performance, resulting in a more stable, extensible, and user-friendly editing platform.
Overall Statistics
Feature vs Bugs
59%Features
Repository Contributions
114Total
Bugs
35
Commits
114
Features
51
Lines of code
29,141
Activity Months19
Your Network
4821 peopleSame Organization
@microsoft.com4808
GitOpsMember
Ananta GuptaMember
Abi GicicMember
Abigail HartmanMember
Abram SandersonMember
Adam EttenbergerMember
Adam KrantzMember
Alexandre GattikerMember
Ami HollanderMember
Work History
May 2026
9 Commits • 3 Features
May 1, 2026May 2026 focused on reliability, UX improvements, and tooling enhancements for microsoft/roosterjs. Delivered key clipboard work, rendering stability fixes, and automated dev tooling to accelerate releases, with an emphasis on business value and high-quality deliverables.
9 Commits • 3 Features
May 1, 2026May 2026 focused on reliability, UX improvements, and tooling enhancements for microsoft/roosterjs. Delivered key clipboard work, rendering stability fixes, and automated dev tooling to accelerate releases, with an emphasis on business value and high-quality deliverables.
May 2026
April 2026
4 Commits • 1 Features
Apr 1, 2026April 2026: Consolidated editor UX stability and robustness in RoosterJS. Delivered UX stabilization by removing unstable experimental options and reintroducing configurable Enter-key handling; fixed security regression related to invisible Unicode characters affecting XSS checks; and hardened HTML list processing to correctly handle items not nested within UL/OL. These changes reduce editor surprises, strengthen content security, and improve HTML spec compliance, delivering business value and enabling smoother content editing for end users.
April 2026
4 Commits • 1 Features
Apr 1, 2026April 2026: Consolidated editor UX stability and robustness in RoosterJS. Delivered UX stabilization by removing unstable experimental options and reintroducing configurable Enter-key handling; fixed security regression related to invisible Unicode characters affecting XSS checks; and hardened HTML list processing to correctly handle items not nested within UL/OL. These changes reduce editor surprises, strengthen content security, and improve HTML spec compliance, delivering business value and enabling smoother content editing for end users.
March 2026
4 Commits • 2 Features
Mar 1, 20262026-03 Monthly Summary for microsoft/roosterjs: Delivered two feature enhancements to improve the content editing experience and applied important fixes to stabilize formatting behavior. Rich Hyperlink Formatting enables bold, italic, underline, and superscript/subscript under hyperlinks, with tests updated to reflect the new behavior for improved UX in content editing. List Formatting Improvements refined the content model API to better manage list item margins when toggling bullets and to align list depth and styles with the current item level, improving consistency and developer ergonomics. Notable commits include 28f5018f3e955bd794bbf6c917532056458c2c9c, 9b5a4a07e10573e06f2a83d0aa1683ca66e4ba52, 4b7145c5b18ce00784ee6236f94d2707373824bd, 874712e12d9168a474b1ae1d7fb24014a8e8112a.
4 Commits • 2 Features
Mar 1, 20262026-03 Monthly Summary for microsoft/roosterjs: Delivered two feature enhancements to improve the content editing experience and applied important fixes to stabilize formatting behavior. Rich Hyperlink Formatting enables bold, italic, underline, and superscript/subscript under hyperlinks, with tests updated to reflect the new behavior for improved UX in content editing. List Formatting Improvements refined the content model API to better manage list item margins when toggling bullets and to align list depth and styles with the current item level, improving consistency and developer ergonomics. Notable commits include 28f5018f3e955bd794bbf6c917532056458c2c9c, 9b5a4a07e10573e06f2a83d0aa1683ca66e4ba52, 4b7145c5b18ce00784ee6236f94d2707373824bd, 874712e12d9168a474b1ae1d7fb24014a8e8112a.
March 2026
February 2026
5 Commits • 4 Features
Feb 1, 2026February 2026 performance snapshot for microsoft/roosterjs: delivered security-focused updates to user-generated content, improved dark mode usability, stabilized list rendering with metadata-driven UL styles, refined mutation observer accuracy to process only in-editor mutations, and preserved cache performance by not invalidating the content model on ContentChangedEvent. Collectively these changes strengthen security, accessibility, rendering consistency, and runtime efficiency across the editor and rendering pipeline.
February 2026
5 Commits • 4 Features
Feb 1, 2026February 2026 performance snapshot for microsoft/roosterjs: delivered security-focused updates to user-generated content, improved dark mode usability, stabilized list rendering with metadata-driven UL styles, refined mutation observer accuracy to process only in-editor mutations, and preserved cache performance by not invalidating the content model on ContentChangedEvent. Collectively these changes strengthen security, accessibility, rendering consistency, and runtime efficiency across the editor and rendering pipeline.
January 2026
3 Commits
Jan 1, 2026January 2026 monthly summary for microsoft/roosterjs. Focused on stabilizing deployment automation and preserving content fidelity in RoosterJS. Key features delivered: CI/CD Publishing Pipeline Reliability fixes and Preserving List Item Color Formatting After Outdent. Major bugs fixed: Publishing issues in the GitHub Actions workflow with a temporary npm publish auth workaround; color formatting preservation after outdent with added tests. Overall impact: more reliable release cycles, reduced publish failures, and improved formatting fidelity across documents, enabling faster iteration for downstream consumers. Technologies/skills demonstrated: GitHub Actions, npm publish workflow, formatHolder usage, test-driven development, and RoosterJS code quality.
3 Commits
Jan 1, 2026January 2026 monthly summary for microsoft/roosterjs. Focused on stabilizing deployment automation and preserving content fidelity in RoosterJS. Key features delivered: CI/CD Publishing Pipeline Reliability fixes and Preserving List Item Color Formatting After Outdent. Major bugs fixed: Publishing issues in the GitHub Actions workflow with a temporary npm publish auth workaround; color formatting preservation after outdent with added tests. Overall impact: more reliable release cycles, reduced publish failures, and improved formatting fidelity across documents, enabling faster iteration for downstream consumers. Technologies/skills demonstrated: GitHub Actions, npm publish workflow, formatHolder usage, test-driven development, and RoosterJS code quality.
January 2026
December 2025
8 Commits • 4 Features
Dec 1, 2025December 2025 monthly summary for microsoft/roosterjs focusing on business value and technical achievements. Delivered performance optimizations, enhanced editing capabilities, and a hardened publishing workflow, while improving reliability and testability across the editor environment.
December 2025
8 Commits • 4 Features
Dec 1, 2025December 2025 monthly summary for microsoft/roosterjs focusing on business value and technical achievements. Delivered performance optimizations, enhanced editing capabilities, and a hardened publishing workflow, while improving reliability and testability across the editor environment.
November 2025
6 Commits • 5 Features
Nov 1, 2025Month: 2025-11 | Repository: microsoft/roosterjs. Focused on delivering editor capabilities, stabilizing content behavior, and cleaning up experimental features. Key outcomes include 5 major features added and multiple bug fixes that improve content integrity, editing reliability, and developer experience. The work strengthens business value of RoosterJS by enabling better editing workflows, safer pasting, and more predictable formatting across documents. Key features delivered and related commits: - Find and Replace in Editor: added API and plugin with case sensitivity, whole word matching, plugin integration, and highlight context management. (Commit: 18cebf255e4b9221da0ba59d8c288220b3ce9cdf) - Paste sanitization and formatting on paste: paste sanitization with parsers for image sizes, table borders, and block elements, respecting editor view width. (Commit: 84d11b09f1b1840b351307e61acb0603b958027f) - List handling improvements and bullet point formatting: improved numbering/formatting, simplified item overrides, and test updates. (Commits: d4807ecefd29ae2a30808441950da5134acd23c6; c4aa81ac41c40b597ec890ef324a1cf2c82a3a52) - Experimental features cleanup and refactor: moved graduated features to a separate type, removed deprecated experimental features, and aligned related components. (Commit: 4717e6bb9885fa2cd5bcd09e3ed397083681fbf3) - Enhanced tab key handling and indentation control: granular control across paragraphs, lists, and tables. (Commit: e9292fcf7b55eb237e1001fdd2bf36eba7d62ada) Major bugs fixed: - Fixed #396891 through paste handling improvements and related parser adjustments. - Resolved list formatting/bullet issues and corrected item overrides to ensure stable rendering. - Addressed indentation and tab behavior edge cases to prevent inconsistent editor state across content types. Overall impact and accomplishments: - Significantly improved editor reliability and content integrity for end users, enabling safer pasting, more predictable formatting, and robust feature handling. - Reduced manual fix load on users with improved automated formatting and consistent rendering across document types. - Streamlined feature lifecycle by retiring deprecated experimental features and clarifying feature types, improving maintainability and future-proofing the codebase. Technologies/skills demonstrated: - TypeScript, editor surface APIs, and plugin architecture. - Content-model plugins, granular indentation and tab handling, and cross-element consistency (paragraphs, lists, tables). - Refactoring and clean-up discipline, focused on testability, build stability, and collaboration across commits.
6 Commits • 5 Features
Nov 1, 2025Month: 2025-11 | Repository: microsoft/roosterjs. Focused on delivering editor capabilities, stabilizing content behavior, and cleaning up experimental features. Key outcomes include 5 major features added and multiple bug fixes that improve content integrity, editing reliability, and developer experience. The work strengthens business value of RoosterJS by enabling better editing workflows, safer pasting, and more predictable formatting across documents. Key features delivered and related commits: - Find and Replace in Editor: added API and plugin with case sensitivity, whole word matching, plugin integration, and highlight context management. (Commit: 18cebf255e4b9221da0ba59d8c288220b3ce9cdf) - Paste sanitization and formatting on paste: paste sanitization with parsers for image sizes, table borders, and block elements, respecting editor view width. (Commit: 84d11b09f1b1840b351307e61acb0603b958027f) - List handling improvements and bullet point formatting: improved numbering/formatting, simplified item overrides, and test updates. (Commits: d4807ecefd29ae2a30808441950da5134acd23c6; c4aa81ac41c40b597ec890ef324a1cf2c82a3a52) - Experimental features cleanup and refactor: moved graduated features to a separate type, removed deprecated experimental features, and aligned related components. (Commit: 4717e6bb9885fa2cd5bcd09e3ed397083681fbf3) - Enhanced tab key handling and indentation control: granular control across paragraphs, lists, and tables. (Commit: e9292fcf7b55eb237e1001fdd2bf36eba7d62ada) Major bugs fixed: - Fixed #396891 through paste handling improvements and related parser adjustments. - Resolved list formatting/bullet issues and corrected item overrides to ensure stable rendering. - Addressed indentation and tab behavior edge cases to prevent inconsistent editor state across content types. Overall impact and accomplishments: - Significantly improved editor reliability and content integrity for end users, enabling safer pasting, more predictable formatting, and robust feature handling. - Reduced manual fix load on users with improved automated formatting and consistent rendering across document types. - Streamlined feature lifecycle by retiring deprecated experimental features and clarifying feature types, improving maintainability and future-proofing the codebase. Technologies/skills demonstrated: - TypeScript, editor surface APIs, and plugin architecture. - Content-model plugins, granular indentation and tab handling, and cross-element consistency (paragraphs, lists, tables). - Refactoring and clean-up discipline, focused on testability, build stability, and collaboration across commits.
November 2025
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10. Focused on delivering stability and reliability enhancements in RoosterJS. Implemented the CloneIndependentRoot experimental feature to clone the root into an independent HTML document, reducing network requests and increasing stability during cloning. Hardened table selection logic to handle empty selections by collapsing to the start and improved how the start container is determined for table operations, increasing robustness of table-related features. These changes were implemented in microsoft/roosterjs with commits 2ce5311a03754988eb5e744859a3f86071ceb219 and 04fb2b052bbca5c4e0b72e16e3b2a79455ed872e. The updates were integrated into the experimental features list and DOM helper implementation, improving maintainability and enabling safer experimentation. Overall, these improvements reduce network traffic in cloning scenarios, minimize edge-case failures in table manipulation, and strengthen the library's reliability for real-world usage.
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10. Focused on delivering stability and reliability enhancements in RoosterJS. Implemented the CloneIndependentRoot experimental feature to clone the root into an independent HTML document, reducing network requests and increasing stability during cloning. Hardened table selection logic to handle empty selections by collapsing to the start and improved how the start container is determined for table operations, increasing robustness of table-related features. These changes were implemented in microsoft/roosterjs with commits 2ce5311a03754988eb5e744859a3f86071ceb219 and 04fb2b052bbca5c4e0b72e16e3b2a79455ed872e. The updates were integrated into the experimental features list and DOM helper implementation, improving maintainability and enabling safer experimentation. Overall, these improvements reduce network traffic in cloning scenarios, minimize edge-case failures in table manipulation, and strengthen the library's reliability for real-world usage.
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for microsoft/roosterjs focusing on stability, robustness, and tooling improvements. Key changes targeted editor reliability and user experience, with precise fixes that address runtime errors, scroll consistency, and content handling edge cases, alongside a tooling cleanup to align with current linting strategies.
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for microsoft/roosterjs focusing on stability, robustness, and tooling improvements. Key changes targeted editor reliability and user experience, with precise fixes that address runtime errors, scroll consistency, and content handling edge cases, alongside a tooling cleanup to align with current linting strategies.
September 2025
August 2025
10 Commits • 5 Features
Aug 1, 20252025-08 monthly summary for microsoft/roosterjs. Delivered key features that accelerate export and content modeling, fixed critical stability issues, and improved editor robustness to enhance productivity and business value. Focused on performance, developer experience, and reliability with a streamlined caching model and safer content-model-to-DOM conversion.
August 2025
10 Commits • 5 Features
Aug 1, 20252025-08 monthly summary for microsoft/roosterjs. Delivered key features that accelerate export and content modeling, fixed critical stability issues, and improved editor robustness to enhance productivity and business value. Focused on performance, developer experience, and reliability with a streamlined caching model and safer content-model-to-DOM conversion.
July 2025
7 Commits • 3 Features
Jul 1, 2025In July 2025, RoosterJS delivered key editor improvements and stability fixes across editing, export quality, and UI configuration. The work focused on reliability of complex editing flows, safer HTML export, dark mode rendering, and configurable image editing. Business impact includes reduced user friction, improved rendering accuracy, and scalable editing capabilities.
7 Commits • 3 Features
Jul 1, 2025In July 2025, RoosterJS delivered key editor improvements and stability fixes across editing, export quality, and UI configuration. The work focused on reliability of complex editing flows, safer HTML export, dark mode rendering, and configurable image editing. Business impact includes reduced user friction, improved rendering accuracy, and scalable editing capabilities.
July 2025
May 2025
8 Commits • 4 Features
May 1, 2025May 2025 focused on strengthening content modeling, editing robustness, and developer productivity for microsoft/roosterjs. Notable deliveries include a new API Playground UI to create content models from HTML with enhanced sanitization and processing; support for image editing metadata within the content model format state; and font/text formatting normalization across DOM and model conversions. Critical fixes improved list indentation preservation and undo stability, along with table editing support for a logical root, collectively enhancing editor reliability and consistency across rendering paths. Business value realized includes safer HTML processing, more predictable formatting, and faster onboarding for HTML-driven content scenarios. Technologies demonstrated include UI integration in the API playground, editor state management, normalization pipelines, and plugin/refactor patterns.
May 2025
8 Commits • 4 Features
May 1, 2025May 2025 focused on strengthening content modeling, editing robustness, and developer productivity for microsoft/roosterjs. Notable deliveries include a new API Playground UI to create content models from HTML with enhanced sanitization and processing; support for image editing metadata within the content model format state; and font/text formatting normalization across DOM and model conversions. Critical fixes improved list indentation preservation and undo stability, along with table editing support for a logical root, collectively enhancing editor reliability and consistency across rendering paths. Business value realized includes safer HTML processing, more predictable formatting, and faster onboarding for HTML-driven content scenarios. Technologies demonstrated include UI integration in the API playground, editor state management, normalization pipelines, and plugin/refactor patterns.
April 2025
15 Commits • 4 Features
Apr 1, 2025April 2025 highlights for microsoft/roosterjs: Delivered essential editor enhancements and stability improvements. Key features delivered include undeletable anchors/links with a demo preset and refined selection behavior; ParagraphMap and ParagraphIndexer for faster paragraph retrieval (opt-in); table enhancements for accurate sizing, cell selection, and smoother UX; and content-model formatting improvements, merging container styles and preserving DIV IDs as FormatContainers. Major bugs fixed include caret visibility during shadow editing, robust cache reconciliation for text nodes with no segments, and refined Enter key handling within inline entities. Overall impact: improved editing UX, fewer formatting regressions, and more reliable content operations with an opt-in path for performance-focused changes. Technologies demonstrated: TypeScript, incremental refactors, feature flags, UI-model integration, and demo site provisioning.
15 Commits • 4 Features
Apr 1, 2025April 2025 highlights for microsoft/roosterjs: Delivered essential editor enhancements and stability improvements. Key features delivered include undeletable anchors/links with a demo preset and refined selection behavior; ParagraphMap and ParagraphIndexer for faster paragraph retrieval (opt-in); table enhancements for accurate sizing, cell selection, and smoother UX; and content-model formatting improvements, merging container styles and preserving DIV IDs as FormatContainers. Major bugs fixed include caret visibility during shadow editing, robust cache reconciliation for text nodes with no segments, and refined Enter key handling within inline entities. Overall impact: improved editing UX, fewer formatting regressions, and more reliable content operations with an opt-in path for performance-focused changes. Technologies demonstrated: TypeScript, incremental refactors, feature flags, UI-model integration, and demo site provisioning.
April 2025
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for microsoft/roosterjs. Focused on editor reliability and robustness. Delivered Korean input formatting improvements and support for hidden properties to enable undeletable anchors, alongside a resilience fix for list processing with a null-safe guard and accompanying tests. These changes reduce edge-case failures, improve UX for complex document formatting, and strengthen maintainability and test coverage. Overall impact includes higher reliability for critical editing features, fewer runtime errors, and clearer implementation of advanced DOM property handling.
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for microsoft/roosterjs. Focused on editor reliability and robustness. Delivered Korean input formatting improvements and support for hidden properties to enable undeletable anchors, alongside a resilience fix for list processing with a null-safe guard and accompanying tests. These changes reduce edge-case failures, improve UX for complex document formatting, and strengthen maintainability and test coverage. Overall impact includes higher reliability for critical editing features, fewer runtime errors, and clearer implementation of advanced DOM property handling.
February 2025
8 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary for microsoft/roosterjs: Delivered high-impact editor reliability and UX improvements across BridgePlugin, table rendering, and typing. Focused on cross-plugin event handling, visual consistency for table headers, and stronger typing; addressed layout stability and test reliability to reduce regressions, while enhancing block-level formatting with BR-aware splitting and safer text conversion.
8 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary for microsoft/roosterjs: Delivered high-impact editor reliability and UX improvements across BridgePlugin, table rendering, and typing. Focused on cross-plugin event handling, visual consistency for table headers, and stronger typing; addressed layout stability and test reliability to reduce regressions, while enhancing block-level formatting with BR-aware splitting and safer text conversion.
February 2025
January 2025
4 Commits • 3 Features
Jan 1, 2025January 2025: Delivered high-value features and stability improvements for microsoft/roosterjs, enhancing cross-version plugin interoperability, editing reliability, and UI consistency. Key outcomes include MixedPlugin support enabling v8/v9 event handling, granular undo/redo control in formatContentModel, and Demo UI stability through Fluent UI version alignment. Resolved IME watermark stability issues to ensure a smooth typing experience, and added tests to validate new undo behavior. The work demonstrates strong TypeScript/React Fluent UI capabilities, robust BridgePlugin patterns, and a focus on end-user editing reliability and developer ergonomics.
January 2025
4 Commits • 3 Features
Jan 1, 2025January 2025: Delivered high-value features and stability improvements for microsoft/roosterjs, enhancing cross-version plugin interoperability, editing reliability, and UI consistency. Key outcomes include MixedPlugin support enabling v8/v9 event handling, granular undo/redo control in formatContentModel, and Demo UI stability through Fluent UI version alignment. Resolved IME watermark stability issues to ensure a smooth typing experience, and added tests to validate new undo behavior. The work demonstrates strong TypeScript/React Fluent UI capabilities, robust BridgePlugin patterns, and a focus on end-user editing reliability and developer ergonomics.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for microsoft/roosterjs: Implemented features and fixes that improve editor customization, reliability, and plugin ergonomics. Delivered a new Content Model API beforeFormat event to allow granular per-entity formatting by plugins; fixed paste caching to preserve data on the first paste and correctly update on subsequent pastes, improving user experience and data integrity.
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for microsoft/roosterjs: Implemented features and fixes that improve editor customization, reliability, and plugin ergonomics. Delivered a new Content Model API beforeFormat event to allow granular per-entity formatting by plugins; fixed paste caching to preserve data on the first paste and correctly update on subsequent pastes, improving user experience and data integrity.
December 2024
November 2024
10 Commits • 3 Features
Nov 1, 2024Concise monthly summary for 2024-11 (microsoft/roosterjs). Highlights key features delivered, major bugs fixed, and the overall impact for the editing platform. Focused on delivering business value through improved traceability, robust content modeling, and stable text formatting workflows.
November 2024
10 Commits • 3 Features
Nov 1, 2024Concise monthly summary for 2024-11 (microsoft/roosterjs). Highlights key features delivered, major bugs fixed, and the overall impact for the editing platform. Focused on delivering business value through improved traceability, robust content modeling, and stable text formatting workflows.
October 2024
2 Commits • 2 Features
Oct 1, 2024October 2024 — microsoft/roosterjs: Delivered two key features that enhance editor reliability and maintainability. 1) Enhanced text-node merging and DOM normalization to preserve formatting and selection during edits; includes testing and build updates. 2) Removed tablePreProcessor and delegated table processing to the default table processor, simplifying the content model. No explicit bug fixes were reported this month; the work focuses on stability, fidelity, and maintainability.
2 Commits • 2 Features
Oct 1, 2024October 2024 — microsoft/roosterjs: Delivered two key features that enhance editor reliability and maintainability. 1) Enhanced text-node merging and DOM normalization to preserve formatting and selection during edits; includes testing and build updates. 2) Removed tablePreProcessor and delegated table processing to the default table processor, simplifying the content model. No explicit bug fixes were reported this month; the work focuses on stability, fidelity, and maintainability.
October 2024
Activity
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Quality Metrics
Correctness91.0%
Maintainability86.4%
Architecture85.0%
Performance83.6%
AI Usage29.4%
Skills & Technologies
Programming Languages
BashCSSHTMLJavaScriptMarkdownReactSCSSTypeScriptYAML
Technical Skills
AI DevelopmentAPI DesignBug FixingCI/CDCSSCachingCode CleanupCode RefactoringCodebase ManagementConfiguration ManagementContent EditingContent ModelContent Model APIContent Model ConversionContent Model Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline