vahanNasibyan

// assuming a var named `buffer` exists and is an AudioBuffer instance


// start a new worker 
// we can't use Recorder directly, since it doesn't support what we're trying to do
var worker = new Worker('recorderWorker.js');

// initialize the new worker
worker.postMessage({
  command: 'init',

vahanNasibyan

### 1. Clone your fork:

    git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

### 2. Add remote from original repository in your forked repository: 

    cd into/cloned/fork-repo
    git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
    git fetch upstream

vahanNasibyan

//view all blocking locks
SELECT
    *
FROM
    pg_locks pl
    LEFT JOIN pg_stat_activity psa ON pl.pid = psa.pid 
WHERE
    wait_event_type = 'Lock' AND pl.pid <> pg_backend_pid()
ORDER BY
    query_start ASC 

vahanNasibyan

const condition  = {
        test: this.sequelize.literal(
          `timezone('UTC', modified::timestamptz) > '${moment(
            this.config.last_parse,
          ).format('YYYY-MM-DD HH:mm:ss +00:00')}'`,
        ),
      }

vahanNasibyan

-- kill running query
SELECT pg_cancel_backend(procpid);

-- kill idle query
SELECT pg_terminate_backend(procpid);

vahanNasibyan

-- show running queries (pre 9.2)
SELECT procpid, age(query_start, clock_timestamp()), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(query_start, clock_timestamp()), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

vahanNasibyan

##Full vacuum of postgres daatabase
#docs https://www.postgresql.org/docs/9.5/static/app-vacuumdb.html
/usr/local/bin/vacuumdb -h [postgres_server_host] -U [username] -d [database] -fze

vahanNasibyan

##Setting up eslint and tests running before each commit.

 1. `npm install --save-dev husky`
 2. `npm install --save-dev lint-staged`
 4. Add husky config to run lint-staged script before every commit

```
  "husky": {
      "hooks": {
        "pre-commit": "lint-staged"

vahanNasibyan

# Stage-1 dependencies
FROM node:8.12.0-alpine as pre

RUN apk add --update git && \
  rm -rf /tmp/* /var/cache/apk/*
RUN mkdir -p /usr/src/app

WORKDIR /usr/src/app

COPY package.json package.json

vahanNasibyan

# Stage-1 dependencies
FROM node:8.12.0-alpine as pre

RUN apk add --no-cache git

RUN apk add --no-cache --virtual .build-deps alpine-sdk python \
 && npm install --production --silent \
 && apk del .build-deps