Chapter 1: Getting Started
Chapter 2: Using Atom
- Atom Packages
- Moving in Atom
- Atom Selections
- Editing and Deleting Text
- Find and Replace
- Snippets
- Autocomplete
- Folding
- Panes
- Pending Pane Items
- Grammar
- Version Control in Atom
- GitHub package
- Writing in Atom
- Basic Customization
- Summary
Chapter 3: Hacking Atom
- Tools of the Trade
- The Init File
- Package: Word Count
- Package: Modifying Text
- Package: Active Editor Info
- Creating a Theme
- Creating a Grammar
- Creating a Legacy TextMate Grammar
- Publishing
- Iconography
- Debugging
- Writing specs
- Handling URIs
- Cross-Platform Compatibility
- Converting from TextMate
- Hacking on Atom Core
- Contributing to Official Atom Packages
- Creating a Fork of a Core Package in atom/atom
- Maintaining a Fork of a Core Package in atom/atom
- Summary
Chapter 4: Behind Atom
- Configuration API
- Keymaps In-Depth
- Scoped Settings, Scopes and Scope Descriptors
- Serialization in Atom
- Developing Node Modules
- Interacting With Other Packages Via Services
- Maintaining Your Packages
- How Atom Uses Chromium Snapshots
- Summary
Reference: API
- AtomEnvironment
- BufferedNodeProcess
- BufferedProcess
- Clipboard
- Color
- CommandRegistry
- CompositeDisposable
- Config
- ContextMenuManager
- Cursor
- Decoration
- DeserializerManager
- Directory
- DisplayMarker
- DisplayMarkerLayer
- Disposable
- Dock
- Emitter
- File
- GitRepository
- Grammar
- GrammarRegistry
- Gutter
- HistoryManager
- KeymapManager
- LayerDecoration
- MarkerLayer
- MenuManager
- Notification
- NotificationManager
- Package
- PackageManager
- Pane
- Panel
- PathWatcher
- Point
- Project
- Range
- ScopeDescriptor
- Selection
- StyleManager
- Task
- TextBuffer
- TextEditor
- ThemeManager
- TooltipManager
- ViewRegistry
- Workspace
- WorkspaceCenter
Appendix A: Resources
Appendix B: FAQ
- Is Atom open source?
- What does Atom cost?
- What platforms does Atom run on?
- How can I contribute to Atom?
- Why does Atom collect usage data?
- Atom in the cloud?
- What's the difference between an IDE and an editor?
- How can I tell if subpixel antialiasing is working?
- Why is Atom deleting trailing whitespace? Why is there a newline at the end of the file?
- What does Safe Mode do?
- I have a question about a specific Atom community package. Where is the best place to ask it?
- I’m using an international keyboard and keys that use AltGr or Ctrl+Alt aren’t working
- I’m having a problem with Julia! What do I do?
- I’m getting an error about a “self-signed certificate”. What do I do?
- I’m having a problem with PlatformIO! What do I do?
- How do I make Atom recognize a file with extension X as language Y?
- How do I make the Welcome screen stop showing up?
- How do I preview web page changes automatically?
- How do I accept input from my program or script when using the script package?
- I am unable to update to the latest version of Atom on macOS. How do I fix this?
- I’m trying to change my syntax colors from styles.less, but it isn’t working!
- How do I build or execute code I've written in Atom?
- How do I uninstall Atom on macOS?
- macOS Mojave font rendering change
- Why does macOS say that Atom wants to access my calendar, contacts, photos, etc.?
- How do I turn on line wrap?
- The menu bar disappeared, how do I get it back?
- How do I use a newline in the result of find and replace?
- What is this line on the right in the editor view?
Appendix C: Shadow DOM
Appendix D: Upgrading to 1.0 APIs
Appendix E: Atom server-side APIs
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Why is Atom deleting trailing whitespace? Why is there a newline at the end of the file?
Atom ships with the whitespace package, which by default strips trailing whitespace from lines in your file, and inserts a final trailing newline to indicate end-of-file as per the POSIX standard.
You can disable this feature by going to the Packages list in the Settings View and finding the whitespace package:
Take a look at the Whitespace section for more information.