assert.ifError()

assert.ifError(value)

Throws value if value is truthy. This is useful when testing the error argument in callbacks.

const assert = require('assert');

assert.ifError(0); // OK
assert.ifError(1); // Throws 1
assert.ifError('error') // Throws 'error'
assert.ifError(new Error()); // Throws Error

Links:

https://nodejs.org/dist/latest-v5.x/docs/api/assert.html#assert_assert_iferror_value

doc_Nodejs

2016-04-30 04:37:21

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