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

2016-04-30 04:38:20

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