📚 Docs or angular.io bug report

✍️Description

Hi All,

The documentation for creating feature mo

Describe the bug
Creating angular project with no initial app throws sb init error
• Detecting project type. ✓
• Adding Storybook support to your "Angular" app
TypeError: Cannot read property 'architect' of undefined

To Reproduce
Steps to reproduce the behavior:

1. ng new ng-ui --create-application=false
2. cd ng-ui
3. ng g lib button -p ui
4. npx -p @storybook/cli sb

🐞 Bug report

Command (mark with an x)

Since version 0.16.5, th following code returns a null worksheet:
XLSX.utils.json_to_sheet([], {header: columns})

Is it now working as it is wanted? If so, how could we create an empty worksheet? In my case it is expected that sometimes the data is an empty array. And an empty worksheet only with headers is expected.

It would be helpful to mention in the API reference for Angular Material tree that besides the MatTreeModule also MatIconModule and MatButtonModule must be imported into the app.module.ts.
(eg. when you use a "Tree with flat nodes")

import {MatButtonModule} from '@angular/material/button';
import {MatIconModule} from '@angular/material/icon';
import {MatTreeModule} from 

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 6.2.2
• Cross-platform modules: 6.0.1
• Android Runtime: 6.2.0
• iOS Runtime: 6.2.0
• Plugin(s): unrelated

Describe the bug
openFile method of utils module does not preview the

This is frequently asked question about the cascader component. Adding a FAQ section would help more users who have the same problem.

https://stackoverflow.com/questions/60320913/ng-zorro-cascader-lazy-load-data-nzloaddata-function-got-this-undefined/60928983#60928983