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samoshkin / text_vs_binary_protocols.md
Last active Apr 8, 2021
Comparison of text and binary protocols
View text_vs_binary_protocols.md

Text protocols

In plain text protocols, the bit stream is organised as a sequence of characters or text strings, e.g. Unicode or ASCII. So the two computers are exchanging textual messages. Example: number 20020 is represented by five characters (5 bytes).

Pros and cons:

  • interoperability between multiple platforms and runtimes that adhere to open and well-known standards: JSON, XML.
  • results in larger size messages
  • can be easily, inspected, read, debugged
@samoshkin
samoshkin / async_generator_to_observable.ts
Created Mar 1, 2020
Create Observable from async generator
View async_generator_to_observable.ts
this.obs = createFrom(async function *() {
await delay(1000);
yield 1;
yield 2;
await delay(500);
await delay(300);
yield 3;
await delay(400);
yield 4;
yield 5;
View observable_operators.ts
type Operator<TSource, TTarget> = (source: Observable<TSource>) => Observable<TTarget>;
function pipe(this: Observable<any>, ...operators: Operator<any, any>[]): Observable<any> {
return operators.reduce((acc, curr) => curr(acc), this);
}
// replace native pipe() method
Observable.prototype.pipe = pipe;
function map<TSource, TTarget>(transform: (TSource) => TTarget): Operator<TSource, TTarget> {
@samoshkin
samoshkin / prose.md
Created Feb 27, 2020
Angular DI и Forms. О чем вам не расскажут книги.
View prose.md

Например есть такая задача. Есть компонент, и на него же вешается директива.

<input [formControl]="controller.formControl"></input>

где component - в данном случае это родной [formControl] - это директива

Задача директивы это настроить связку между "input.value" (view) и controller.formControl (model) в две стороны:

View es-versions-and-features.md
@samoshkin
samoshkin / vimrc-merge.vim
Created May 7, 2019
Test vimrc configuration to turn Vim into a mergetool
View vimrc-merge.vim
set nocompatible
filetype plugin indent on
set tabstop=2 softtabstop=2 shiftwidth=2 expandtab
set number
set hidden
set splitbelow
set splitright
@samoshkin
samoshkin / difftool_vimrc.vim
Created Apr 30, 2019
Test vimrc configuration to turn Vim into a difftool
View difftool_vimrc.vim
set nocompatible
filetype plugin indent on
set tabstop=2 softtabstop=2 shiftwidth=2 expandtab
set number
set hidden
set splitbelow
set splitright
@samoshkin
samoshkin / env.sh
Created Apr 18, 2019
fzf configuration snippet
View env.sh
# Exclude those directories even if not listed in .gitignore, or if .gitignore is missing
FD_OPTIONS="--follow --exclude .git --exclude node_modules"
# Change behavior of fzf dialogue
export FZF_DEFAULT_OPTS="--no-mouse --height 50% -1 --reverse --multi --inline-info --preview='[[ \$(file --mime {}) =~ binary ]] && echo {} is a binary file || (bat --style=numbers --color=always {} || cat {}) 2> /dev/null | head -300' --preview-window='right:hidden:wrap' --bind='f3:execute(bat --style=numbers {} || less -f {}),f2:toggle-preview,ctrl-d:half-page-down,ctrl-u:half-page-up,ctrl-a:select-all+accept,ctrl-y:execute-silent(echo {+} | pbcopy)'"
# Change find backend
# Use 'git ls-files' when inside GIT repo, or fd otherwise
export FZF_DEFAULT_COMMAND="git ls-files --cached --others --exclude-standard | fd --type f --type l $FD_OPTIONS"
@samoshkin
samoshkin / convert2voice.sh
Last active Apr 1, 2019
Google Text-to-Speech API example
View convert2voice.sh
#!/bin/bash
text=$(cat -)
request="{
'input':{
'ssml':'<speak>$text</speak>'
},
'voice':{
'languageCode':'en-gb',
'name':'en-GB-Wavenet-D',
@samoshkin
samoshkin / postman_vs_insomnia_comparison.md
Created Nov 6, 2018
Comparison of API development environments: Postman vs Insomnia
View postman_vs_insomnia_comparison.md

Postman vs Insomnia comparison

Postman | API Development Environment https://www.getpostman.com
Insomnia REST Client - https://insomnia.rest/

Features                                        Insomnia Postman Notes
Create and send HTTP requests x x
Authorization header helpers x x Can create "Authorization" header for you for different authentication schemes: Basic, Digest, OAuth, Bearer Token, HAWK, AWS