No Console

Disallows the use of the console global.

Oftentimes, developers accidentally commit console.log/console.error statements, left in particularly after debugging. Moreover, using these in code may leak sensitive information to the output or clutter the console with unnecessary information. This rule helps maintain clean and secure code by disallowing the use of console.

This rule is especially useful in libraries where you almost never want to output to the console.

Invalid:

console.log("Debug message");
console.error("Debug message");
console.debug(obj);

if (debug) console.log("Debugging");

function log() {
  console.log("Log");
}

Valid:

It is recommended to explicitly enable the console via a deno-lint-ignore comment for any calls where you actually want to use it.

function logWarning(message: string) {
  // deno-lint-ignore no-console
  console.warn(message);
}