csv tutorial

https://howtodoinjava.com/apache-commons/parse-read-write-csv-opencsv/

creating array of object in php

creating array of object in php 

<?php
$object = new stdClass();
$object->content="";
$object->content="pawan";
$object1=array();
array_push($object1,$object);
//print_r($object1);
echo $object1[0]->content;

?>

set immediate

http://voidcanvas.com/setimmediate-vs-nexttick-vs-settimeout/

bind and apply

https://medium.com/@ivansifrim/the-differences-between-call-apply-bind-276724bb825b

javascript bind example

let obj = {things: 3};

let addThings = function(a, b, c){

return this.things + a + b + c;

};

let fn=addThings.bind(obj); //bind will return the function copy and obj parameter which took place of this.

fn(1,2,3);

//console.log( addThings.bind(obj)(1,4,6) );

code convention link

https://www.oracle.com/technetwork/java/codeconvtoc-136057.html

node js rds connection

var mysql = require('mysql');

var connection = mysql.createConnection({
    host     : 'amazon-string.rds.amazonaws.com',
    user     : 'myusername',
    password : 'mypassword'
});

connection.connect();

exports.handler = (event, context) => {

    connection.query("SELECT * FROM table", function(err, rows, fields) {
        console.log("rows: " + rows);
        context.succeed('Success');
    });

};

trim space from laravel request object

$request->merge(array_map(‘trim’, $request->all()));

git tag creation

https://stackoverflow.com/questions/18216991/create-a-tag-in-a-github-repository

git push origin --tags

git push origin <tag>

elasticsearch connection with node js

https://www.compose.com/articles/getting-started-with-elasticsearch-and-node/
https://qbox.io/blog/integrating-elasticsearch-into-node-js-application

DynamoDb connection on localhost machine

https://medium.com/@vschroeder/install-a-local-dynamodb-development-database-on-your-machine-82dc38d59503

var AWS = require('aws-sdk');

var config = {
  "apiVersion": "2012-08-10",
  "accessKeyId": "abcde",
  "secretAccessKey": "abcde",
  "region":"us-west-2",
  "endpoint": "http://localhost:8000"
}
var dynamodb = new AWS.DynamoDB(config);

javascript important terms

https://blog.pragmatists.com/top-10-es6-features-by-example-80ac878794bb