typs.js
// throws error if obj doesn't check
throws error if obj doesn't check
throws error if obj doesn ' t check
checkOrThrow (error) {
		if (this.doesntCheck()) {
			throw error;
		}
	}
checkOrThrow ( error ) { if ( this . doesntCheck ( ) ) { throw error ; } }
throws error if obj doesn't check
throws error if obj doesn ' t check