rodrigopedra
/ index.html
Last active
May 31, 2022 23:51
Rotate and scale image around its center using canvas
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| <html> | |
| <head> | |
| <style> | |
| body { | |
| background-color: #ccc; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <canvas id="box" width="500" height="500"></canvas> |
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| import { v4 as uuid } from 'uuid'; | |
| export function generateId() { | |
| return uuid(); | |
| } | |
| const v4 = new RegExp(/^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i); | |
| console.log(generateId().match(v4)); | |
| //console.log(generateId().length) |
rgreenjr
/ postgres_queries_and_commands.sql
Last active
June 5, 2024 13:48
Useful PostgreSQL Queries and Commands
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| -- 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%' |