Why is the node js module not working?

Question

JavaScript

I want to use the module for DynamoDB. I install it via npm.
I indicate var ddb = require('dynamodb');.
...
ddb.getItem(...)
An error is displayed in the console Is the

code trying to use undefined as a function?

Answer 1

"undefined is not a function" doesn't tell you anything? It turns out that the ddb variable is not defined. Maybe it just doesn't find the module. Try to reinstall it.

Answer 2

var ddb = require('ddb').ddb;
After initialization, there should be an object, not a function.