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Key Bindings
Visual Studio Code Key Bindings
Here you will find the complete list of key bindings for Visual Studio Code and how to change them.

Key Bindings for Visual Studio Code

Visual Studio Code lets you perform most tasks directly from the keyboard. This page lists out the default bindings (keyboard shortcuts) and describes how you can update them.

Note: If you visit this page on a Mac, you will see the key bindings for the Mac. If you visit using Windows or Linux, you will see the keys for that platform. If you need the key binding for another platform, hover your mouse over the key you are interested in.

Keymap Extensions

Keyboard shortcuts are vital to productivity and changing keyboarding habits can be tough. To help with this, File > Preferences > Keymap Extensions shows you a list of popular keymap extensions. These extensions modify the VS Code shortcuts to match those of other editors so you don't need to learn new keyboard shortcuts. There is also a Keymaps category of extensions in the Marketplace.

Tip: The extensions shown above are dynamically queried. Click on an extension tile above to read the description and reviews to decide which extension is best for you. See more in the Marketplace.

Keyboard Shortcuts Reference

We also have a printable version of these keyboard shortcuts. Help > Keyboard Shortcut Reference displays a condensed PDF version suitable for printing as an easy reference.

Below are links to the three platform-specific versions:

Basic Editing

Note: The following keys are rendered assuming a standard US keyboard layout. If you use a different keyboard layout, please read below.

Key Command Command id
kb(editor.action.clipboardCutAction) Cut line (empty selection) editor.action.clipboardCutAction
kb(editor.action.clipboardCopyAction) Copy line (empty selection) editor.action.clipboardCopyAction
kb(editor.action.deleteLines) Delete Line editor.action.deleteLines
kb(editor.action.insertLineAfter) Insert Line Below editor.action.insertLineAfter
kb(editor.action.insertLineBefore) Insert Line Above editor.action.insertLineBefore
kb(editor.action.moveLinesDownAction) Move Line Down editor.action.moveLinesDownAction
kb(editor.action.moveLinesUpAction) Move Line Up editor.action.moveLinesUpAction
kb(editor.action.copyLinesDownAction) Copy Line Down editor.action.copyLinesDownAction
kb(editor.action.copyLinesUpAction) Copy Line Up editor.action.copyLinesUpAction
kb(editor.action.addSelectionToNextFindMatch) Add Selection To Next Find Match editor.action.addSelectionToNextFindMatch
kb(editor.action.moveSelectionToNextFindMatch) Move Last Selection To Next Find Match editor.action.moveSelectionToNextFindMatch
kb(cursorUndo) Undo last cursor operation cursorUndo
kb(editor.action.insertCursorAtEndOfEachLineSelected) Insert cursor at end of each line selected editor.action.insertCursorAtEndOfEachLineSelected
kb(editor.action.selectHighlights) Select all occurrences of current selection editor.action.selectHighlights
kb(editor.action.changeAll) Select all occurrences of current word editor.action.changeAll
kb(expandLineSelection) Select current line expandLineSelection
kb(editor.action.insertCursorBelow) Insert Cursor Below editor.action.insertCursorBelow
kb(editor.action.insertCursorAbove) Insert Cursor Above editor.action.insertCursorAbove
kb(editor.action.jumpToBracket) Jump to matching bracket editor.action.jumpToBracket
kb(editor.action.indentLines) Indent Line editor.action.indentLines
kb(editor.action.outdentLines) Outdent Line editor.action.outdentLines
kb(cursorHome) Go to Beginning of Line cursorHome
kb(cursorEnd) Go to End of Line cursorEnd
kb(cursorBottom) Go to End of File cursorBottom
kb(cursorTop) Go to Beginning of File cursorTop
kb(scrollLineDown) Scroll Line Down scrollLineDown
kb(scrollLineUp) Scroll Line Up scrollLineUp
kb(scrollPageDown) Scroll Page Down scrollPageDown
kb(scrollPageUp) Scroll Page Up scrollPageUp
kb(editor.fold) Fold (collapse) region editor.fold
kb(editor.unfold) Unfold (uncollapse) region editor.unfold
kb(editor.foldRecursively) Fold (collapse) all subregions editor.foldRecursively
kb(editor.unfoldRecursively) Unfold (uncollapse) all subregions editor.unfoldRecursively
kb(editor.foldAll) Fold (collapse) all regions editor.foldAll
kb(editor.unfoldAll) Unfold (uncollapse) all regions editor.unfoldAll
kb(editor.action.addCommentLine) Add Line Comment editor.action.addCommentLine
kb(editor.action.removeCommentLine) Remove Line Comment editor.action.removeCommentLine
kb(editor.action.commentLine) Toggle Line Comment editor.action.commentLine
kb(editor.action.blockComment) Toggle Block Comment editor.action.blockComment
kb(actions.find) Find actions.find
kb(editor.action.startFindReplaceAction) Replace editor.action.startFindReplaceAction
kb(editor.action.nextMatchFindAction) Find Next editor.action.nextMatchFindAction
kb(editor.action.previousMatchFindAction) Find Previous editor.action.previousMatchFindAction
kb(editor.action.selectAllMatches) Select All Occurrences of Find Match editor.action.selectAllMatches
kb(toggleFindCaseSensitive) Toggle Find Case Sensitive toggleFindCaseSensitive
kb(toggleFindRegex) Toggle Find Regex toggleFindRegex
kb(toggleFindWholeWord) Toggle Find Whole Word toggleFindWholeWord
kb(editor.action.toggleTabFocusMode) Toggle Use of Tab Key for Setting Focus editor.action.toggleTabFocusMode
kb(toggleRenderWhitespace) Toggle Render Whitespace toggleRenderWhitespace
kb(editor.action.toggleWordWrap) Toggle Word Wrap editor.action.toggleWordWrap

Rich Languages Editing

Key Command Command id
kb(editor.action.triggerSuggest) Trigger Suggest editor.action.triggerSuggest
kb(editor.action.triggerParameterHints) Trigger Parameter Hints editor.action.triggerParameterHints
kb(editor.action.formatDocument) Format Document editor.action.formatDocument
kb(editor.action.formatSelection) Format Selection editor.action.formatSelection
kb(editor.action.goToDeclaration) Go to Definition editor.action.goToDeclaration
kb(editor.action.previewDeclaration) Peek Definition editor.action.previewDeclaration
kb(editor.action.openDeclarationToTheSide) Open Definition to the Side editor.action.openDeclarationToTheSide
kb(editor.action.quickFix) Quick Fix editor.action.quickFix
kb(editor.action.referenceSearch.trigger) Show References editor.action.referenceSearch.trigger
kb(editor.action.rename) Rename Symbol editor.action.rename
kb(editor.action.inPlaceReplace.down) Replace with Next Value editor.action.inPlaceReplace.down
kb(editor.action.inPlaceReplace.up) Replace with Previous Value editor.action.inPlaceReplace.up
kb(editor.action.smartSelect.grow) Expand AST Select editor.action.smartSelect.grow
kb(editor.action.smartSelect.shrink) Shrink AST Select editor.action.smartSelect.shrink
kb(editor.action.trimTrailingWhitespace) Trim Trailing Whitespace editor.action.trimTrailingWhitespace
kb(workbench.action.editor.changeLanguageMode) Change Language Mode workbench.action.editor.changeLanguageMode


Key Command Command id
kb(workbench.action.showAllSymbols) Show All Symbols workbench.action.showAllSymbols
kb(workbench.action.gotoLine) Go to Line... workbench.action.gotoLine
kb(workbench.action.quickOpen) Go to File..., Quick Open workbench.action.quickOpen
kb(workbench.action.gotoSymbol) Go to Symbol... workbench.action.gotoSymbol
kb(workbench.actions.view.problems) Show Problems workbench.actions.view.problems
kb( Go to Next Error or Warning
kb(editor.action.marker.prev) Go to Previous Error or Warning editor.action.marker.prev
kb(workbench.action.showCommands) Show All Commands workbench.action.showCommands
kb(workbench.action.openPreviousRecentlyUsedEditorInGroup) Navigate Editor Group History workbench.action.openPreviousRecentlyUsedEditorInGroup
kb(workbench.action.navigateBack) Go Back workbench.action.navigateBack
kb(workbench.action.navigateForward) Go Forward workbench.action.navigateForward

Editor/Window Management

Key Command Command id
kb(workbench.action.newWindow) New Window workbench.action.newWindow
kb(workbench.action.closeWindow) Close Window workbench.action.closeWindow
kb(workbench.action.closeActiveEditor) Close Editor workbench.action.closeActiveEditor
kb(workbench.action.closeFolder) Close Folder workbench.action.closeFolder
kb(workbench.action.navigateEditorGroups) Cycle Between Editor Groups workbench.action.navigateEditorGroups
kb(workbench.action.splitEditor) Split Editor workbench.action.splitEditor
kb(workbench.action.focusFirstEditorGroup) Focus into Left Editor Group workbench.action.focusFirstEditorGroup
kb(workbench.action.focusSecondEditorGroup) Focus into Side Editor Group workbench.action.focusSecondEditorGroup
kb(workbench.action.focusThirdEditorGroup) Focus into Right Editor Group workbench.action.focusThirdEditorGroup
kb(workbench.action.focusPreviousGroup) Focus into Editor Group on the Left workbench.action.focusPreviousGroup
kb(workbench.action.focusNextGroup) Focus into Editor Group on the Right workbench.action.focusNextGroup
kb(workbench.action.moveEditorLeftInGroup) Move Editor Left workbench.action.moveEditorLeftInGroup
kb(workbench.action.moveEditorRightInGroup) Move Editor Right workbench.action.moveEditorRightInGroup
kb(workbench.action.moveActiveEditorGroupLeft) Move Active Editor Group Left workbench.action.moveActiveEditorGroupLeft
kb(workbench.action.moveActiveEditorGroupRight) Move Active Editor Group Right workbench.action.moveActiveEditorGroupRight

File Management

Key Command Command id
kb(workbench.action.files.newUntitledFile) New File workbench.action.files.newUntitledFile
kb(workbench.action.files.openFile) Open File... workbench.action.files.openFile
kb( Save
kb(workbench.action.files.saveAll) Save All workbench.action.files.saveAll
kb(workbench.action.files.saveAs) Save As... workbench.action.files.saveAs
kb(workbench.action.closeActiveEditor) Close workbench.action.closeActiveEditor
kb(workbench.action.closeOtherEditors) Close Others workbench.action.closeOtherEditors
kb(workbench.action.closeEditorsInGroup) Close Group workbench.action.closeEditorsInGroup
kb(workbench.action.closeEditorsInOtherGroups) Close Other Groups workbench.action.closeEditorsInOtherGroups
kb(workbench.action.closeEditorsToTheLeft) Close Group to Left workbench.action.closeEditorsToTheLeft
kb(workbench.action.closeEditorsToTheRight) Close Group to Right workbench.action.closeEditorsToTheRight
kb(workbench.action.closeAllEditors) Close All workbench.action.closeAllEditors
kb(workbench.action.reopenClosedEditor) Reopen Closed Editor workbench.action.reopenClosedEditor
kb(workbench.action.keepEditor) Keep Open workbench.action.keepEditor
kb(workbench.action.openNextRecentlyUsedEditorInGroup) Open Next workbench.action.openNextRecentlyUsedEditorInGroup
kb(workbench.action.openPreviousRecentlyUsedEditorInGroup) Open Previous workbench.action.openPreviousRecentlyUsedEditorInGroup
kb(workbench.action.files.copyPathOfActiveFile) Copy Path of Active File workbench.action.files.copyPathOfActiveFile
kb(workbench.action.files.revealActiveFileInWindows) Reveal Active File in Windows workbench.action.files.revealActiveFileInWindows
kb(workbench.action.files.showOpenedFileInNewWindow) Show Opened File in New Window workbench.action.files.showOpenedFileInNewWindow
kb(workbench.files.action.compareFileWith) Compare Opened File With workbench.files.action.compareFileWith


Key Command Command id
kb(workbench.action.toggleFullScreen) Toggle Full Screen workbench.action.toggleFullScreen
kb(workbench.action.toggleZenMode) Toggle Zen Mode workbench.action.toggleZenMode
kb(workbench.action.exitZenMode) Leave Zen Mode workbench.action.exitZenMode
kb(workbench.action.zoomIn) Zoom in workbench.action.zoomIn
kb(workbench.action.zoomOut) Zoom out workbench.action.zoomOut
kb(workbench.action.zoomReset) Reset Zoom workbench.action.zoomReset
kb(workbench.action.toggleSidebarVisibility) Toggle Sidebar Visibility workbench.action.toggleSidebarVisibility
kb(workbench.view.explorer) Show Explorer / Toggle Focus workbench.view.explorer
kb(workbench.view.debug) Show Debug workbench.view.debug
kb(workbench.view.git) Show Git workbench.view.git
kb(workbench.view.extensions) Show Extensions workbench.view.extensions
kb(workbench.action.output.toggleOutput) Show Output workbench.action.output.toggleOutput
kb(workbench.action.quickOpenView) Quick Open View workbench.action.quickOpenView
kb( Show Search
kb(workbench.action.replaceInFiles) Replace in Files workbench.action.replaceInFiles
kb( Toggle Search Details
kb(workbench.action.terminal.openNativeConsole) Open New Command Prompt workbench.action.terminal.openNativeConsole
kb(markdown.showPreview) Toggle Markdown Preview markdown.showPreview
kb(markdown.showPreviewToSide) Open Preview to the Side markdown.showPreviewToSide
kb(workbench.action.terminal.toggleTerminal) Toggle Integrated Terminal workbench.action.terminal.toggleTerminal


Key Command Command id
kb(workbench.action.openGlobalSettings) Open User Settings workbench.action.openGlobalSettings
kb(workbench.action.openWorkspaceSettings) Open Workspace Settings workbench.action.openWorkspaceSettings
kb(workbench.action.openGlobalKeybindings) Open Keyboard Shortcuts workbench.action.openGlobalKeybindings
kb(workbench.action.openSnippets) Open User Snippets workbench.action.openSnippets
kb(workbench.action.selectTheme) Select Color Theme workbench.action.selectTheme
kb(workbench.action.configureLocale) Configure Display Language workbench.action.configureLocale


Key Command Command id
kb(editor.debug.action.toggleBreakpoint) Toggle Breakpoint editor.debug.action.toggleBreakpoint
kb(workbench.action.debug.continue) Continue workbench.action.debug.continue
kb(workbench.action.debug.start) Pause workbench.action.debug.start
kb(workbench.action.debug.stepInto) Step Into workbench.action.debug.stepInto
kb(workbench.action.debug.stepOut) Step Out workbench.action.debug.stepOut
kb(workbench.action.debug.stepOver) Step Over workbench.action.debug.stepOver
kb(workbench.action.debug.stop) Stop workbench.action.debug.stop
kb(editor.action.showHover) Show Hover editor.action.showHover


Key Command Command id
kb( Run Build Task
kb(workbench.action.tasks.test) Run Test Task workbench.action.tasks.test


Key Command Command id
kb(workbench.extensions.action.installExtension) Install Extension workbench.extensions.action.installExtension
kb(workbench.extensions.action.showInstalledExtensions) Show Installed Extensions workbench.extensions.action.showInstalledExtensions
kb(workbench.extensions.action.listOutdatedExtensions) Show Outdated Extensions workbench.extensions.action.listOutdatedExtensions
kb(workbench.extensions.action.showRecommendedExtensions) Show Recommended Extensions workbench.extensions.action.showRecommendedExtensions
kb(workbench.extensions.action.showPopularExtensions) Show Popular Extensions workbench.extensions.action.showPopularExtensions
kb(workbench.extensions.action.updateAllExtensions) Update All Extensions workbench.extensions.action.updateAllExtensions

Customizing Shortcuts

All keyboard shortcuts in VS Code can be customized via the User/keybindings.json file.

  • To configure keyboard shortcuts the way you want, go to the menu under File > Preferences > Keyboard Shortcuts. (Code > Preferences > Keyboard Shortcuts on Mac)
  • This will open the Default Keyboard Shortcuts on the left and your User/keybindings.json file where you can overwrite the default bindings on the right.
  • The list above isn't exhaustive. More commands may be listed under "Here are other available commands" in Default Keyboard Shortcuts.

Keyboard Rules

The keyboard shortcuts dispatching is done by analyzing a list of rules that are expressed in JSON. Here are some examples:

// Keybindings that are active when the focus is in the editor
{ "key": "home",            "command": "cursorHome",                  "when": "editorTextFocus" },
{ "key": "shift+home",      "command": "cursorHomeSelect",            "when": "editorTextFocus" },

// Keybindings that are complementary
{ "key": "f5",              "command": "workbench.action.debug.continue", "when": "inDebugMode" },
{ "key": "f5",              "command": "workbench.action.debug.start",    "when": "!inDebugMode" },

// Global keybindings
{ "key": "ctrl+f",          "command": "actions.find" },
{ "key": "alt+left",        "command": "workbench.action.navigateBack" },
{ "key": "alt+right",       "command": "workbench.action.navigateForward" },

// Global keybindings using chords (two separate keypress actions)
{ "key": "ctrl+k enter",    "command": "workbench.action.keepEditor" },
{ "key": "ctrl+k ctrl+w",   "command": "workbench.action.closeAllEditors" },

Each rule consists of:

  • a key that describes the pressed keys.
  • a command containing the identifier of the command to execute.
  • an optional when clause containing a boolean expression that will be evaluated depending on the current context.

Chords (two separate keypress actions) are described by separating the two keypresses with a space. E.g.: kbstyle(ctrl+k ctrl+c).

When a key is pressed:

  • the rules are evaluated from bottom to top.
  • the first rule that matches, both the key and in terms of when, is accepted.
  • no more rules are processed.
  • if a rule is found and has a command set, the command is executed.

The additional User/keybindings.json rules are appended at runtime to the bottom of the default rules, thus allowing them to overwrite the default rules. The User/keybindings.json file is watched by VS Code so editing it while VS Code is running will update the rules at runtime.

Accepted keys

The key is made up of modifiers and the key itself.

The following modifiers are accepted:

Platform|Modifiers --|--------- Mac|kbstyle(ctrl+), kbstyle(shift+), kbstyle(alt+), kbstyle(cmd+) Windows|kbstyle(ctrl+), kbstyle(shift+), kbstyle(alt+), kbstyle(win+) Linux|kbstyle(ctrl+), kbstyle(shift+), kbstyle(alt+), kbstyle(meta+)

The following keys are accepted:

  • kbstyle(f1-f19), kbstyle(a-z), kbstyle(0-9)
  • kbstyle(`), kbstyle(-), kbstyle(=), kbstyle([), kbstyle(]), kbstyle(\), kbstyle(;), kbstyle('), kbstyle(,), kbstyle(.), kbstyle(/)
  • kbstyle(left), kbstyle(up), kbstyle(right), kbstyle(down), kbstyle(pageup), kbstyle(pagedown), kbstyle(end), kbstyle(home)
  • kbstyle(tab), kbstyle(enter), kbstyle(escape), kbstyle(space), kbstyle(backspace), kbstyle(delete)
  • kbstyle(pausebreak), kbstyle(capslock), kbstyle(insert)
  • kbstyle(numpad0-numpad9), kbstyle(numpad_multiply), kbstyle(numpad_add), kbstyle(nupad_separator)
  • kbstyle(numpad_subtract), kbstyle(numpad_decimal), kbstyle(numpad_divide)

when Clause Contexts

VS Code gives you fine control over when your key bindings are enabled through the optional when clause. If you key binding doesn't have a when clause, the key binding is globally available at all times.

Below are the some of the possible when clause contexts which evaluate to Boolean true/false:

Context name True when
Editor contexts
editorFocus An editor has focus, either the text or a widget.
editorTextFocus The text in an editor has focus (cursor is blinking).
editorHasSelection Text is selected in the editor.
editorHasMultipleSelections Multiple regions of text are selected (multiple cursors).
editorReadOnly The editor is read only.
editorLangId True when the editor's associated language Id matches. Example: "editorLangId == typescript".
Mode contexts
inDebugMode A debug session is running.
inSnippetMode The editor is in snippet mode.
inQuickOpen The Quick Open dropdown has focus.
Editor widget contexts
findWidgetVisible Editor Find widget is visible.
suggestWidgetVisible Suggestion widget (IntelliSense) is visible.
suggestWidgetMultipleSuggestions Multiple suggestions are displayed.
renameInputVisible Rename input text box is visible.
referenceSearchVisible Find All References peek window is open.
inReferenceSearchEditor The Find All References peek window editor has focus.
config.editor.stablePeek Keep peek editors open (controlled by editor.stablePeek setting).
quickFixWidgetVisible Quick Fix widget is visible.
parameterHintsVisible Parameter hints are visible (controlled by editor.parameterHints setting).
parameterHintsMultipleSignatures Multiple parameter hints are displayed.
Integrated terminal contexts
terminalFocus An integrated terminal has focus.
Global UI contexts
resourceLangId True when the Explorer or editor title language Id matches. Example: "resourceLangId == markdown"
globalMessageVisible Message box is visible at the top of VS Code.
searchViewletVisible Search view is open.
replaceActive Search view Replace text box is open.

The list above isn't exhaustive and you may see some when contexts for specific VS Code UI in the Default Keyboard Shortcuts.

Removing a specific key binding rule

You can write a key binding rule that targets the removal of a specific default key binding. With the keybindings.json, it was always possible to redefine all the key bindings of VS Code, but it can be very difficult to make a small tweak, especially around overloaded keys, such as kbstyle(Tab) or kbstyle(Escape). To remove a specific key binding, simply add a - to the command and the rule will be a removal rule.

Here is an example:

// In Default Keyboard Shortcuts
{ "key": "tab", "command": "tab", "when": ... },
{ "key": "tab", "command": "editor.emmet.action.expandAbbreviation", "when": ... },
{ "key": "tab", "command": "jumpToNextSnippetPlaceholder", "when": ... },
{ "key": "tab", "command": "acceptSelectedSuggestion", "when": ... },

// To remove the second rule, for example, add in keybindings.json:
{ "key": "tab", "command": "-editor.emmet.action.expandAbbreviation" }

Keyboard layouts

Note: This section relates only to key bindings, not to typing in the editor.

The keys above are string representations for virtual keys and do not necessarily relate to the produced character when they are pressed. More precisely:

  • Reference:
  • kbstyle(tab) for VK_TAB (0x09)
  • kbstyle(;) for VK_OEM_1 (0xBA)
  • kbstyle(=) for VK_OEM_PLUS (0xBB)
  • kbstyle(,) for VK_OEM_COMMA (0xBC)
  • kbstyle(-) for VK_OEM_MINUS (0xBD)
  • kbstyle(.) for VK_OEM_PERIOD (0xBE)
  • kbstyle(/) for VK_OEM_2 (0xBF)
  • kbstyle(`) for VK_OEM_3 (0xC0)
  • kbstyle([) for VK_OEM_4 (0xDB)
  • kbstyle(\) for VK_OEM_5 (0xDC)
  • kbstyle(]) for VK_OEM_6 (0xDD)
  • kbstyle(') for VK_OEM_7 (0xDE)
  • etc.

Different keyboard layouts usually reposition the above virtual keys or change the characters produced when they are pressed. When using a different keyboard layout than the standard US, Visual Studio Code does the following:

All the key bindings are rendered in the UI using the current system's keyboard layout. For example, Split Editor when using a French (France) keyboard layout is now rendered as kbstyle(Ctrl+*):

render key binding

When editing keybindings.json, VS Code highlights misleading key bindings - those that are represented in the file with the character produced under the standard US keyboard layout, but which need pressing keys with different labels under the current system's keyboard layout. For example, here is how the Default keybindings rules look like when using a French (France) keyboard layout:

keybindings.json guidance

There is also a widget that helps input the key binding rule when editing keybindings.json. To launch the Define Keybinding widget, press kb(editor.action.defineKeybinding). The widget listens for key presses and renders the serialized JSON representation in the text box and below it, the keys that VS Code has detected under your current keyboard layout. Once you've typed the key combination you want, you can press kbstyle(Enter) and a rule snippet will be inserted.

key binding widget

Note: Visual Studio Code detects your current keyboard layout on start-up and then caches this information. For a good experience, we recommend restarting VS Code if you change your keyboard layout.

Next Steps

Now that you know about our Key binding support, what's next...

  • Customization - Configure Code the way you want - Themes, Settings and more
  • Language Support - Our Good, Better, Best language grid to see what you can expect
  • Debugging - This is where VS Code really shines
  • Node.js - End to end Node.js scenario with a sample app

Common Questions

Q: How to find out what command is bound to a specific key?

A: In the Default Keyboard Shortcuts, open Quick Outline by pressing kb(workbench.action.gotoSymbol)

Key bindings quick outline

Q: How to add a key binding to an action? E.g. Add Ctrl+D to Delete Lines

A: Find a rule that triggers the action in the Default Keyboard Shortcuts and write a modified version of it in your User/keybindings.json file:

// Original, in Default Keyboard Shortcuts
{ "key": "ctrl+shift+k",          "command": "editor.action.deleteLines",
                                     "when": "editorTextFocus" },
// Modified, in User/keybindings.json, Ctrl+D now will also trigger this action
{ "key": "ctrl+d",                "command": "editor.action.deleteLines",
                                     "when": "editorTextFocus" },

Q: How can I add a key binding for only certain file types?

A: Use the editorLangId context key in your when clause:

{ "key": "shift+alt+a",           "command": "editor.action.blockComment",
                                     "when": "editorTextFocus && editorLangId == csharp" },

Q: I have modified my key bindings in User/keybindings.json, why don't they work?

A: The most common problem is a syntax error in the file. Otherwise, try removing the when clause or picking a different key. Unfortunately, at this point, it is a trial and error process.