laughinghan

• any: magic, ill-behaved type that acts like a combination of never (the proper [bottom type]) and unknown (the proper [top type])
  • Anything except never is assignable to any, and any is assignable to anything at all.
  • Identities: any & AnyTypeExpression = any, any | AnyTypeExpression = any
  • Key TypeScript feature that allows for [gradual typing].
• unknown: proper, well-behaved [top type]
  • Anything at all is assignable to unknown. unknown is only assignable to itself (unknown) and any.
  • Identities: unknown & AnyTypeExpression = AnyTypeExpression, unknown | AnyTypeExpression = unknown

• Prefer over any whenever possible. Anywhere in well-typed code you're tempted to use any, you probably want unknown.

kapunahelewong

Make sure you've read the Angular.io CONTRIBUTING.md before starting out.

Angular.io local setup

Follow these steps when you are setting up the repo locally for the first time and would like to view your changes in the browser as you edit.

1. Fork angular/angular.

In terminal:

mhevery

Microsyntax

Microsyntax in Angular allows you to write <div *ngFor="let item of items">{{item}}</div> instead of <ng-template ngFor [ngForOf]="items"><div>{{item}}</div></ng-template.

Constraints

The microsyntax must:

• be know ahead of time so that IDEs can parse it without knowing what is the underlying semantics of the directive or what directives are present.
• must translate to key-value attributes in the DOM.

glenngr

import { Subject } from 'rxjs/Subject';
import { Store } from '@ngrx/store';
import { Component, OnInit, OnDestroy, AfterViewInit } from '@angular/core';

import { AppState } from '../../../root.reducer';

@Component({
    selector: 'my-map-example',
    template: `
              <sebm-google-map

giovannicandido

SELECT ddlsql || regexp_replace(name, E'^_',E'','g') || ';' as ddlsql FROM
(
SELECT  'ALTER TABLE ' || quote_ident(c.table_schema) || '.'
  || quote_ident(c.table_name) || ' RENAME "' || c.column_name || '" TO ' As ddlsql, quote_ident(lower(regexp_replace(column_name, E'([A-Z])', E'\_\\1','g'))) as name
  FROM information_schema.columns As c
  WHERE c.table_schema NOT IN('information_schema', 'pg_catalog') 
      AND c.column_name <> lower(c.column_name) 
  ORDER BY c.table_schema, c.table_name, c.column_name
) x;

giovannicandido

SELECT ddlsql || regexp_replace(name, E'^_',E'','g') As ddlsql FROM  (SELECT 'ALTER TABLE ' || quote_ident(t.table_schema) || '.'
  || quote_ident(t.table_name) || ' RENAME TO '  As ddlsql, quote_ident(lower(regexp_replace(t.table_name, E'([A-Z])', E'\_\\1','g'))) || ';' as name
  FROM information_schema.tables As t
  WHERE t.table_schema NOT IN('information_schema', 'pg_catalog') 
      AND t.table_name <> lower(t.table_name) 
  ORDER BY t.table_schema, t.table_name) x;

btroncone

Comprehensive Introduction to @ngrx/store

By: @BTroncone

Also check out my lesson @ngrx/store in 10 minutes on egghead.io!

Update: Non-middleware examples have been updated to ngrx/store v2. More coming soon!

Table of Contents

mauvm

$ npm install --save babel-cli babel-preset-es2015
$ npm install --save-dev jasmine

.babelrc:

{
 "presets": ["es2015"]