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JavaScript / TypeScript Styleguide

Single Quotes vs Double Quotes

String delimiters matter. Explore the quote preferences across popular TypeScript projects with real-world data.

66%

Use Single Quotes

34%

Use Double Quotes

Team Single Quotes

Minimal visual noise and the de facto standard in modern JavaScript ecosystems.

Code Example

example.ts (single quotes)
const greeting = 'Hello, World!';
const user = {
  name: 'Alice',
  email: '[email protected]',
};

const template = 'Welcome, ' + user.name;
const message = `User: ${user.name}`;

Key Benefits

  • Less visual noise in code
  • Requires fewer shift keystrokes
  • Standard in Vue.js and many modern frameworks
  • Enforced by StandardJS
  • Used by most Node.js projects
  • Cleaner HTML attribute writing

Statistics

Team Double Quotes

Traditional, familiar to backend developers, and emphasizes string values clearly.

Code Example

example.ts (double quotes)
const greeting = "Hello, World!";
const user = {
  name: "Alice",
  email: "[email protected]",
};

const template = "Welcome, " + user.name;
const message = `User: ${user.name}`;

Key Benefits

  • Familiar to most programmers
  • Matches many other languages (Python, Java, C#)
  • Clear visual distinction from single quotes
  • Preferred in JSON and configuration files
  • Used by Prettier's default configuration
  • Common in backend TypeScript projects

Statistics

Additional Insights

More data points to help you make an informed decision for your team.

995

repositories analyzed