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Mihai Serban mihaiserban

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View med-9797f5f7b9b4_gesture-demo.tsx
import React, { useState } from "react";
import { SafeAreaView, Text } from "react-native";
import {
Gesture,
GestureDetector,
GestureHandlerRootView,
} from "react-native-gesture-handler";
export default function GestureDemo() {
const [tGestureStart, setTGestureStart] = useState<undefined | string>();
@dtmrc
dtmrc / index.ts
Created October 13, 2021 02:47 — forked from dvcrn/index.ts
get metadata from metaplex
View index.ts
import * as web3 from "@solana/web3.js";
import * as metadata from "./metadata"; // see metadata.ts
const tokenAddress = new web3.PublicKey(
"CxkKDaBvtHqg8aHBVY8E4YYBsCfJkJVsTAEdTo5k4SEw"
);
(async () => {
// Connect to cluster
var connection = new web3.Connection(
@zurgl
zurgl / mint.js
Created July 3, 2021 01:19
solana js examples
View mint.js
const web3 = require('@solana/web3.js');
const splToken = require('@solana/spl-token');
(async () => {
//create connection to devnet
const connection = new web3.Connection(web3.clusterApiUrl("devnet"));
//generate keypair and airdrop 1000000000 Lamports (1 SOL)
const myKeypair = web3.Keypair.generate();
@LeZuse
LeZuse / 00_README.md
Last active February 24, 2024 10:49
Install node on Apple Silicon M1 both ARM and x86 (Rosetta)
View 00_README.md

Node.js on Apple Silicon

Node Version Manager (https://github.com/nvm-sh/nvm) works perfectly across native node installations as well as emulated Rosetta installations. The trick I am using here is to install one LTS version of node under Rosetta and another stable version as native binary.

TODO

  • find a way how to run the same node version on both platforms
@beautyfree
beautyfree / snippets.js
Last active December 14, 2022 11:49
Solana Web3 Snippets
View snippets.js
import {
Account,
clusterApiUrl,
Connection,
PublicKey,
sendAndConfirmTransaction,
SystemProgram,
Transaction,
} from '@solana/web3.js';
@mihaiserban
mihaiserban / image-react.js
Last active May 17, 2019 09:06
React image fallback - in case src fails try to load a placeholder instead
View image-react.js
import React from "react";
import PropTypes from "prop-types";
class Image extends React.Component {
constructor(props) {
super(props);
this.state = { src: props.src };
}
componentWillReceiveProps(nextProps) {
@mcdougal
mcdougal / _error.js
Created September 28, 2018 11:53
Using @sentry/browser with Next.js for client and server-side rendering
View _error.js
import * as Sentry from '@sentry/browser';
import getConfig from 'next/config';
import React from 'react';
const { SENTRY_DSN } = getConfig().publicRuntimeConfig;
Sentry.init({ dsn: SENTRY_DSN });
/**
* Send an error event to Sentry.
@ryansimms
ryansimms / circleci-2.0-eb-deployment.md
Last active February 22, 2024 04:55
Deploying to Elastic Beanstalk via CircleCi 2.0
View circleci-2.0-eb-deployment.md

Deploying to Elastic Beanstalk via CircleCi 2.0

I got to here after spending hours trying to deploy to an Elastic Beanstalk instance via CircleCi 2.0 so I thought I'd write up what worked for me to hopefully help others. Shout out to RobertoSchneiders who's steps for getting it to work with CircleCi 1.0 were my starting point.

For the record, I'm not the most server-savvy of developers so there may be a better way of doing this.

Setup a user on AWS IAM to use for deployments

@vlucas
vlucas / encryption.js
Last active February 22, 2024 19:11
Stronger Encryption and Decryption in Node.js
View encryption.js
'use strict';
const crypto = require('crypto');
const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY; // Must be 256 bits (32 characters)
const IV_LENGTH = 16; // For AES, this is always 16
function encrypt(text) {
let iv = crypto.randomBytes(IV_LENGTH);
let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(ENCRYPTION_KEY), iv);
@benwells
benwells / reduce-example.js
Created May 12, 2016 13:40
Using Array.reduce to sum a property in an array of objects
View reduce-example.js
var accounts = [
{ name: 'James Brown', msgCount: 123 },
{ name: 'Stevie Wonder', msgCount: 22 },
{ name: 'Sly Stone', msgCount: 16 },
{ name: 'Otis Redding', msgCount: 300 } // Otis has the most messages
];
// get sum of msgCount prop across all objects in array
var msgTotal = accounts.reduce(function(prev, cur) {
return prev + cur.msgCount;