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Node.jsを利用してフォルダ作成を効率化してみる

Last updated at Posted at 2020-10-01

はじめに

「001」「002」「003」・・・「100」のような大量のフォルダを作成する必要があり、手作業でやるのは馬鹿馬鹿しいのでNode.jsで作ってみました。Windowsで動作します。

mkdir.js
const fs = require('fs')

// プログラム実行ディレクトリ配下を指定
const rootPath = process.cwd() + '\\';

for (let i = 1; i <= 100; i++) {
    const num = ('000' + i).slice(-3);
    const directoryPath = rootPath + num;
    fs.stat(directoryPath, (error, stats) => {
        if (error) {
            if (error.code === 'ENOENT') {
                fs.mkdir(directoryPath, (error) => {
                    if (error) {
                        throw error
                    } else {
                        console.log(`${directoryPath}ディレクトリを作成できました。`)
                    }
                });
            } else {
                console.log(error);
            }
        } else {
            console.log(`${directoryPath}ディレクトリは既に存在します。`);
        }
    })
}
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