type holyshared = Engineer<mixed>
TypeORMでは QueryRunner のプロパティからpgのPool インスタンスにアクセスすることができます。 pgのPool インスタンスからはプールの状態を確認できるプロパティがあります。 totalCount - プールにあるコネクションの総数 idleCount - コネクションプールにある空きコネクション数 waitingCount - 接続待ちのコネクション数 このプロパティをログに出力しておくことで、プールのサイズを調整する目安にすることができます。 QueryRunnerは Repository、EntityManagerなどから参照できるため、ログの出力特に困らないはずです。 import { DataSource } from "typeorm"; import { Pool } from "pg"; const dataSource = new DataSou
The "C is Efficient" Language Fallacy | ScienceBlogs
I came across an article yesterday about programming languages, which hit on one of my major peeves, so I can't resist responding. The article is at greythumb.org, and it's called [Programmer's rant: what should and should not be added to C/C++](http://www.greythumb.org/blog/index.php?/archives/152-Programmers-rant-…). It's a variation on the extremely common belief that C and C++ are the best lan
Self Adjusting DOM and Diffable Data
In my last post, I gave some simple examples showing how you could use self adjusting computations, or SAC, as embodied by our Incremental library, to incrementalize the computation of virtual dom nodes. In this post, I’d like to discuss how we can extend this approach to more realistic scales, and some of the extensions to Incremental itself that are required to get there. Along the way, we’ll di
Beginner's guide to OCaml beginner's guides.
Computer "scientist" Alex Clemmer is a computer programmer. Other programmers love Alex, excitedly describing him as "employed here" and "the boss's son". Alex is also a Hacker School alum. Surely they do not at all regret admitting him! personal site @hausdorff_space github.com/hausdorff RSS feed [Translation available in Japanese] So you want to learn OCaml. Where do you start? What do you do? I
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