kawanet

{
  "red": {
    "50": "#ffebee",
    "100": "#ffcdd2",
    "200": "#ef9a9a",
    "300": "#e57373",
    "400": "#ef5350",
    "500": "#f44336",
    "600": "#e53935",
    "700": "#d32f2f",

kawanet

#!/bin/bash
#---
## @file exec-service.sh
## @brief Loop-run systemd’s ExecStart command
## @see https://gist.github.com/kawanet/2eadbbf03f3619a28bb7cd6f36985f8d
## @author Yusuke Kawasaki
## @license MIT
#---

die () {

kawanet

server {
  listen 80;
  server_name _;

  location /ok {
    return 200;
  }

  location / {
    return 404;

kawanet

/** カタカナをひらがなに変換する関数
 * @param {String} src - カタカナ
 * @returns {String} - ひらがな
 */

function katakanaToHiragana(src) {
	return src.replace(/[\u30a1-\u30f6]/g, function(match) {
		var chr = match.charCodeAt(0) - 0x60;
		return String.fromCharCode(chr);
	});

kawanet

#!/usr/bin/env bash

convert -background none image.svg -define icon:auto-resize=64,48,32,16 favicon.ico

kawanet

// 文字列から ArrayBuffer への変換

function string_to_buffer(src) {
  return (new Uint16Array([].map.call(src, function(c) {
    return c.charCodeAt(0)
  }))).buffer;
}

// ArrayBuffer から文字列への変換

kawanet

kawanet

#!/usr/bin/env bash

# @see http://superuser.com/questions/524793/convert-grayscale-image-into-alpha-channel-image-in-unix-shell

convert source.png -alpha copy -channel alpha -negate +channel -fx '#000' result.png

kawanet

node -e 'require("fs").writeFileSync(process.argv[1], "\uFEFF" + require("iconv-cp932").decode(require("fs").readFileSync(process.argv[1])))' filename.csv

kawanet

const getTimezoneOffset = (timeZone, dt) => new Intl.DateTimeFormat("en-US", {timeZoneName: "longOffset", timeZone}).formatToParts(dt).find(v => v.type === "timeZoneName")?.value;

getTimezoneOffset("America/New_York", new Date()); // => "GMT-05:00"

getTimezoneOffset("America/New_York"); // => "GMT-05:00"

getTimezoneOffset("invalid"); // => Uncaught RangeError: Invalid time zone specified: