debugモジュールで標準出力に表示されないのはなぜ？（`process.env.DEBUG`で環境変数を設定しているつもりなんだけど） ## jsnode"start" const debug = require('debug')('puppeteer-loadtest'); process.env.DEBUG = "puppeteer-loadtest"; debug('start'); `set DEBUG=puppeteer-loadtest``puppeteer-loadtest start +0ms` `process.env.DEBUG = "puppeteer-loadtest";`"start" ## * node v10.13.0 ## <

`process.env.DEBUG = "puppeteer-loadtest";`DEBUGDEBUG

`DEBUG`debug`const debug = require('debug')('puppeteer-loadtest');`

`process.env.DEBUG`"start"


process.env.DEBUG = "puppeteer-loadtest";
const debug = require('debug')('puppeteer-loadtest');
debug('start');


`process.env.DEBUG``process.env.DEBUG`

`enable`"start"`enable``require('debug')``createDebug`


const createDebug = require('debug');
const debug = createDebug('puppeteer-loadtest');
createDebug.enable('pupeteer-loadtest');
debug('start');