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  • References
  • JavaScript
  • Node.js
  • Console

console.assert()

console.assert(value[, message][, ...])

A simple assertion test that verifies whether value is truthy. If it is not, an AssertionError is thrown. If provided, the error message is formatted using util.format() and used as the error message.

console.assert(true, 'does nothing');
  // OK
console.assert(false, 'Whoops %s', 'didn\'t work');
  // AssertionError: Whoops didn't work
Links:
  • https://nodejs.org/dist/latest-v5.x/docs/api/console.html#console_console_assert_value_message
doc_Nodejs
doc_Nodejs
2025-01-10 15:47:30
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