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@derekmd
derekmd / Optional.php
Last active October 17, 2021 10:25
Laravel global helper function `optional()`
<?php
namespace App\Support;
class Optional
{
/**
* The target being transformed.
* Use _ prefix to avoid namespace conflict on __get()
*
@yang-wei
yang-wei / note.md
Last active April 19, 2021 14:49
Vue.js tips and tricks

Notes: All the examples below are only tested on Vue.js 1.0 (above).

Notes: The examples below use ES6 so it's recommended to use browserify or webpack to easily integrate babel.

when or where can we use this.$el

When you need to access DOM attribute, be careful with the lifecycle. Vue.js has a few useful lifecycle hooks.

Let's say we want to scroll our component to the bottom (imagine it's a long list with overflow-y: auto) once it's instantiate.

@eznj
eznj / star_wars.ino
Last active September 26, 2023 18:24
Arduino Star Wars Song
const int c = 261;
const int d = 294;
const int e = 329;
const int f = 349;
const int g = 391;
const int gS = 415;
const int a = 440;
const int aS = 455;
const int b = 466;
const int cH = 523;
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active May 14, 2024 11:33
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), 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(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'