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console: log() static method

files/en-us/web/api/console/log_static/index.md

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{{APIRef("Console API")}} {{AvailableInWorkers}}

The console.log() static method outputs a message to the console.

Syntax

js-nolint
console.log(val1)
console.log(val1, /* …, */ valN)
console.log(msg)
console.log(msg, subst1, /* …, */ substN)

Parameters

  • val1 … valN
    • : A list of JavaScript values to output. A representation of each of these values is output to the console in the order given with some type of separation between each of them. There is a special case if val1 is a string, which is described subsequently.
  • msg
    • : A JavaScript string containing zero or more substitution strings, which are replaced with subst1 through substN in consecutive order up to the number of substitution strings. See Using string substitutions for a description of how substitutions work.
  • subst1 … substN
    • : JavaScript values with which to replace substitution strings within msg. If there are more substitution values than there are substitution strings, the extra values are themselves written to the console after the detailed assertion message in the same manner as when there's no format string.

See Outputting text to the console in the documentation of {{domxref("console")}} for further details.

Return value

None ({{jsxref("undefined")}}).

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also