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Ionic 3 cheat sheet by Benjamin

Les commandes principales:

• npm install -g cordova ionic #Installer Ionic
• $ ionic info #Récupérer toutes les info
• $ ionic start blank #Créer un projet vierge
• $ ionic start "myApp" #Multiple choix de création de projet
• $ ionic generate #Creation divers
• $ ionic generate component

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CSS Selectors Cheatsheet

Element selectors

Element -- selects all h2 elements on the page

h2 {
    foo: bar;

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JAVA 8 - Chuleta

Expresión Lambda

(int a) -> a * 2; // Calcula el doble de a
a -> a * 2; // o simplemente sin tipo

(a, b) -> a + b; // Suma 2 parametros

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Reactive Forms

A quick reference guide on how to setup.

How to setup

import ReactiveFormsModule

import { ReactiveFormsModule } from '@angular/forms';
@NgModule ({

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/* RGBA Color Specification */

background-color: rgba(255, 255, 255, 0.3); color: rgba(255, 255, 255, 0.3);

/* Box Shadow Attributes // (Inset or No, Horiz. (px), Vert. (px), Blur Radius, Spread, Shadow Color) */

/* Box Shadow - Standard */ box-shadow: 0px 0px 5px 1px #444;

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title	prism_languages	tags	layout
Firebase	coffeescript	WIP	2017/sheet

Authenticating

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There is no way to store an empty object/array/null value.
There are also no actual arrays.  Array values get stored as objects with integer keys.
    (If all keys are integers, it will be returned as an array.)

Basically, it's one giant tree of hashes with string keys.
Simply write a value to any location, and the intermediary locations will automatically come into existance.

── Classes ──

DataSnapshot : Container for a subtree of data at a particular location.

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man COMMAND # Look up help for the given command

pwd # Print working directory cd MYDIR # Change directory to MYDIR cd ~/ # Change directory to user root (/Users/USERNAME) cd .. # Change directory up a level mkdir NEWDIR # Create a new directory in the current folder called NEWDIR

cp FROM_FILE TO_FOLDER # Copy FROM_FILE into TO_FOLDER cp -r FROM_DIR TO_FOLDER # Copy FROM_DIR into TO_FOLDER

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Services

Use service for any Class that is to be mapped into the dependency injector.

Do not use a service for a method (use a Class instead).

Services are implemented as a Class and should be PascalCase. Angular will instantiate once only and inject the same instance in all cases. The dependency is therefore camelCase since it is an instance and should not be new'd. For example:

angular.module(...).service('myService', MyService);

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Controllers

Use a controller to augment shared scope.

• To decorate it with value that HTML partials may bind to.
• To provide behaviour that HTML partials may invoke.

Do not use a controller:

• To store application state (describe in the route instead).
• To store persistent data (controllers and scope are dropped on every route change, use service instead).
• To implement behaviour and business logic (defer to a service).