isRunningInJs top-level constant

bool const isRunningInJs

Tells whether the code is running in a Javascript interpreter.

Note that this may be false even if isRunningInWeb is true. For example, the application could have been compiled to Web Assembly (WASM).

Example

import 'package:os/os.dart';

void doSomething() {
  if (isRunningInJs) {
    // ...
  } else {
    // ...
  }
}

See also

• isRunningInDebugMode
• isRunningInFlutter
• isRunningInProfileMode
• isRunningInReleaseMode
• isRunningInTest
• isRunningInWeb

Implementation

const bool isRunningInJs =
    bool.fromEnvironment('dart.library.js') && 0 is double;