How can I get the current and detect quantity if it changed? any of item?

[kapil-ropani]

Issue checklist

I'm submitting a...

• Regression
• Bug report
• Feature request
• Documentation issue or request
• Support request

Environment

Angular version: major.minor.patch
7.2

NgShoppingCart version: major.minor.patch
1.0.0

Browser: Name, Platform, Version
Chrome 76.0.3809.100, Desktop
Platform: Name, Version
Windows
Node version: major.minor.patch
10.16

Current behavior

I'm not able to get the quantity of item and detect quantity when it changes.

Expected behavior

It should return the quantity in numbers and also emit the changes

Steps to reproduce

[devconcept]

Are you referring to change a particular item's quantity or the total number of items in the cart?