teppeis

Break the Web: Object static methods no longer throw errors for primitives!

Object.keys等のstaticメソッドがES6で挙動が変わったことで面倒なことになってる話

何が変わったか

ES5でプリミティブを受け取ると例外を投げていたObject.keys等のメソッドが、ES6では例外を吐かなくなった。

• Object.getPrototypeOf ( O )
• Object.getOwnPropertyDescriptor ( O, P )

teppeis

天下一gitconfig大会(サイボウズ社内git勉強会@2012/11/20)の@teppeisの資料です。

ぎっとぎとにしてやんよ

GistDeck

• gistでmarkdown書いたらbookmarkletでプレゼンになるよ。

teppeis

jQuery Release Notes

2.X

• 2.2.3 (2016/04/05)
• 2.2.2 (2016/03/17)
• 2.2.1 (2016/02/22)
• 2.2.0 (2016/01/08)
• 2.1.4 (2015/04/28)
• 2.1.3 (2014/12/18)

teppeis

ECS Container Instance scale-in protector

Protect container instance with containers running from scale-in. Uses aws-cli set-instance-protection. Inspired by: https://stackoverflow.com/questions/45020323/ecs-asg-scaling-down-policy-recommendations

Ignores ecs-agent and dd-agent when counting running containers. You can add more in containers_running in the script below.

Prerequisites

• awk
• awscli

teppeis

#!/bin/bash
#
# Check package.json and npm install after git checkout.
# Put this to .git/hooks/post-checkout
#

PREVIOUS_HEAD=$1
NEW_HEAD=$2
BRANCH_SWITCH=$3

teppeis

ES Class Fields (Stage 2 now)

プライベートフィールドがハッシュな変態記法なのは何でなんだぜ？

class Point {
    #x;
    #y;
 constructor(x = 0, y = 0) {

teppeis

#!/bin/sh

sudo apt-get install fontforge fonts-inconsolata

mkdir -p ~/.fonts

TMPDIR=$(mktemp -d /tmp/ricty-XXXXX)
cd $TMPDIR

wget http://iij.dl.sourceforge.jp/mix-mplus-ipa/59022/migu-1m-20130617.zip

teppeis

# derived from https://yoshiori.hatenablog.com/entry/2021/04/13/171405

AIR_PODS_ADDRESS="aa-aa-aa-aa-aa-aa"
AIR_PODS_NAME="XXX AirPods Pro"

/usr/local/bin/bluetoothconnector -c $AIR_PODS_ADDRESS
for ((i=0 ; i<10 ; i++))
do
    if [ "Connected" == "$(/usr/local/bin/bluetoothconnector -s $AIR_PODS_ADDRESS)" ]; then
        # sleep 0.5

teppeis

/// <reference path="typings/node/node.d.ts" />
/// <reference path="typings/typescript/typescript.d.ts" />

import ts = require("typescript");
import fs = require("fs");
import path = require("path");

function transform(contents: string, libSource: string, compilerOptions: ts.CompilerOptions = {}) {
    // Generated outputs
    var outputs = [];

teppeis

/**
 * @author ebidel@ (Eric Bidelman)
 * License Apache-2.0
 *
 * Shows how to use Puppeeteer's code coverage API to measure CSS/JS coverage across 
 * different points of time during loading. Great for determining if a lazy loading strategy
 * is paying off or working correctly.
 *
 * Install: 
 *   npm i puppeteer chalk cli-table