Is String ASCII (ES)

⚖️ MIT

🔗 DistBoard @hugoalh ● GitHub ● JSR ● NPM

An ECMAScript module to determine whether the string is ASCII.

🎯 Runtime Targets

Any runtime which support ECMAScript should able to use this; These runtimes are officially supported:

• Bun >= v1.1.0
• Deno >= v2.1.0
• NodeJS >= v20.9.0

🛡️ Runtime Permissions

This does not request any runtime permission.

#️⃣ Entrypoints

Name	Path	Description
.	./mod.ts	Default.
./all	./all.ts	All ASCII characters.
./control	./control.ts	ASCII control characters.
./printable	./printable.ts	ASCII printable characters.

Note

• Different runtimes have vary support for the entrypoints, visit the runtime documentation for more information.
• These are not part of the public APIs hence should not be used:
  • Benchmark/Test file (e.g.: example.bench.ts, example.test.ts).
  • Entrypoint name or path include any underscore prefix (e.g.: _example.ts, foo/_example.ts).
  • Identifier/Namespace/Symbol include any underscore prefix (e.g.: _example, Foo._example).

🧩 APIs

• function isStringASCII(item: string): boolean;
  

• function isStringASCIIControl(item: string): boolean;
  

• function isStringASCIIPrintable(item: string): boolean;
  

Note

• For the full or prettier documentation, can visit via:
  • Deno CLI deno doc
  • JSR

✍️ Examples

• isStringASCII("日本語");
  //=> false
  

• isStringASCII("👀");
  //=> false
  

• isStringASCII("Hello, world!");
  //=> true
  

• isStringASCII("");
  //=> true