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

Comments

Popular Articles

assert() assert (v [, message]) Calls error if the value of its argument v is false (i.e., nil or false); otherwise, returns all its arguments. In case of e

assert Defined in header <assert.h> #ifdef NDEBUG #define assert(condition) ((void)0) #else #define assert(condition) /*implementation defined

assert assert(exp, msg=None) Class Public methods

assert (PHP 4, PHP 5, PHP 7) Checks if assertion is FALSE bool assert ( mixed $assertion [, string $descr

assert Defined in header <cassert> #ifdef NDEBUG #define assert(condition) ((void)0) #else #define assert(condition) /*implementation defined*