Arturs Jansons iegik

Linux containers (LXC)

brew install lxc

Presentational and Container Components

Dumb (stateless) and Smart components

Dumb:

import React from 'react';
export default (props = {}) => (
    <View/>
)

Before rafactoring, clean the code base

Use Git
Choose your style guide and use linters
Create graph and clean dead code
Determinate code duplication, use patterns

Git

Using git saves time to find a bug, by code author or feature

Ionic/Capacitor

Add ionic to existing app

ionic init

choose your js fasmework

Setup

npm install -g cordova
cordova config set -g telemetry false
cordova create my-app && cd my-app
JAVA_HOME=`/usr/libexec/java_home -v 1.8` cordova requirements android
cordova platform add android
cordova build android

If you accidently remove any host from known_hosts you can restore them by following command:

ssh-keyscan -H HOSTNAME >> ~/.ssh/known_hosts

LOGICAL AND - a ∧ b (a && b) - is true if A and B are both true; else it is false.

LOGICAL OR - a ∨ b (a || b) - is true if A or B (or both) are true; if both are false, the statement is false.

LOGICAL XOR - a ⊕ b (a != b) - is true when either A or B, but not both, are true.

EQUIVALENCE - a ↔ b (a == b) - means A is true if B is true and A is false if B is false

LOGICAL NOT - ¬a (!a) - is true if and only if A is false.

in markdown format:

HTML image:

HTML video:

	#!/bin/bash
	# grep -sinE $1 --color -R ./* > $2; wc -l $2;

	TEXT=$1
	FILE=$2
	grep -sinE $TEXT -R ./* \| awk -F":" '{ print "name: "$1"\nline: "$2"\ncontent "$3"\ninfo: \""; system("stat -nf\"%z, %B %m\" "$1); print "\"\n"}' > $FILE;
	grep "name: " $FILE \| wc -l;

	## Node.js

	node () { docker run -it -u $(id -u) -v "$PWD":/usr/src/app -w /usr/src/app --rm node:4 node $@; }
	npm () { docker run -it -u $(id -u) -v "$PWD":/usr/src/app -v $HOME/.npm:/.npm -w /usr/src/app --rm node:4 npm $@; }