insist

Drop-in replacement of assert with a better message.

insist

A drop-in replacement for assert, with a better default message.

var assert = require('insist');
 
// AssertionError: assert(3 instanceof Function); 
assert(3 instanceof Function);
 
//plus all properties of assert 
assert.equal(foo, bar); // AssertionError: "baz" == "quux" from assert.equal(foo, bar); 
assert.ok();
assert.deepEqual();
// etc... 

Also, turn off these assertions with NO_ASSERT=1 env var.