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noConsoleLog

Diagnostic Category: lint/suspicious/noConsoleLog

Since: v1.0.0

Description

Section titled Description

Disallow the use of console.log

Examples

Section titled Examples

Invalid

Section titled Invalid
console.log()
code-block.js:1:1 lint/suspicious/noConsoleLog  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ Don’t use console.log
  
  > 1 │ console.log()
      │ ^^^^^^^^^^^^^
    2 │ 
  
  ℹ console.log is usually a tool for debugging and you don’t want to have that in production.
  
  ℹ If it is not for debugging purpose then using console.info might be more appropriate.
  
  ℹ Unsafe fix: Remove console.log
  
    1 │ console.log()
      │ -------------

Valid

Section titled Valid
console.info("info");
console.warn("warn");
console.error("error");
console.assert(true);
console.table(["foo", "bar"]);
const console = { log() {} };
console.log();

How to configure

Section titled How to configure
biome.json
{
  "linter": {
    "rules": {
      "suspicious": {
        "noConsoleLog": "error"
      }
    }
  }
}
Section titled Related links