Full workbench mockup using this variant's colors and tokenColors.
fetchUser.ts
index.ts
README.md
src
components
fetchUser.ts
User
tags
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export interface User { id: string; name: string; role: "admin" | "member"; tags: string[];}/** * Fetch user data by ID * @param id * @returns User object or null if ID is invalid */export async function fetchUser(id: string): Promise<User | null> { if (!id) { return null; } const response = await fetch(`/api/users/${id}`, { method: "GET", headers: { Accept: "application/json" }, }); if (!response.ok) { throw new Error(`HTTP ${response.status}`); } return (await response.json()) as User;}function greet(user: User): string { // Simple greeting function that uses the user's name return `Hello, ${user.name}!`;}
Problems1
Output
Debug Console
Terminal
Ports
~/my-project $ pnpm test
✓ fetchUser passed 12blk
✗Cannot find name 'user'. error
▲warning 412 readylocalhost
http://localhost:3000
WSL
1 1
main*
Copilot
Ln 5, Col 12
Spaces: 2
UTF-8
LF
TypeScript
Mercury
colors
Workbench UI color keys from the theme JSON colors map.
key
HEX
RGB
RGBA
activityBar.background
activityBar.border
activityBar.foreground
activityBarBadge.background
editor.background
editor.foreground
editor.inactiveSelectionBackground
editor.selectionHighlightBackground
editorGroupHeader.tabsBackground
editorIndentGuide.activeBackground
editorIndentGuide.background
editorLineNumber.foreground
editorSuggestWidget.selectedBackground
extensionButton.prominentBackground
extensionButton.prominentForeground
focusBorder
list.dropBackground
sideBar.background
sideBar.border
sideBar.foreground
sideBarTitle.foreground
statusBar.background
statusBar.border
statusBar.foreground
statusBarItem.hoverBackground
tab.activeForeground
tab.border
tab.inactiveBackground
textLink.foreground
titleBar.activeBackground
titleBar.border
tokenColors
Foregrounds this theme assigns to the token scope catalog. A rule with only a font style is skipped, and a longer matching scope wins. Italic and bold rules are not listed — the preview above shows them in the code.