JSON.parse() および JSON.stringify() の使用方法
JSON オブジェクトの parseおよびstringifyメソッドのクイックリファレンス。
Como escrever um código assíncrono em Node.js
O autor selecionou a Open Internet/Free Speech Fund para receber uma doação como parte do programa Write for DOnations. Com muitos programas em JavaScript, o código é executado da…
Использование интерфейсов в Go
Для разработки гибких и универсальных программ очень важно создавать гибкий, модульный и многоразовый код. Такая модель работы упрощает обслуживание кода, устраняя необходимость вносить одинаковые изменения в разных местах. Конкретный способ достижения цели зависит от языка….
How to Automate Debian 10 Server Provisioning with Ansible
Introduction Deploying automate debian 10 server provisioning with ansible on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]
How To Query Tables and Paginate Data in Flask-SQLAlchemy
In this tutorial, you’ll use Flask and Flask-SQLAlchemy to create an employee management system with a database that has a table for employees. You’ll use the Flask shell to query a table, and get table records based on a column value. You’ll retrieve records on certain conditions. You’ll order the results by a column value, and count and limit query results. Finally, you’ll use pagination to display a certain number of records per page in a web application.
Oracle Linux 8 — zziplib — vulnerability — patch and remediation guide (ELSA-2024-3127)
🟡 Medium ⏱ 10–30 min Last verified: 19 January 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2024-3127 Related CVEs: CVE-2020-18770 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
How To Obtain a pandas DataFrame from an Unordered API Endpoint
A DataFrame is a two-dimensional data structure with data presented in rows and columns. Using Python, one common method is to convert data from CSV, Excel, or API endpoints into a Pandas DataFrame. However, some API endpoints do not represent column names and their values in a clear context, which can present a challenge for converting the data into a DataFrame. In this tutorial, you will obtain data from an unordered endpoint and present it in a suitable format to Pandas DataFrame.
Installation und Nutzung von PostgreSQL auf Ubuntu 18.04
Relationale Datenbank-Managementsysteme sind ein wichtiger Bestandteil zahlreicher Websites und Anwendungen. Sie stellen eine strukturierte Art und Weise zur Speicherung, Organisation und zum Zugriff auf Informationen bereit. PostgreSQL oder…
How to Configure Device Guard on Windows Server 2016
How to Configure Windows Server 2016 Device Guard Device Guard is a Windows Server 2016 security feature that uses hardware virtualization and code integrity policies to ensure only trusted, signed code runs on a system. It consists of two components: Configurable Code Integrity (CCI), which enforces a whitelist of trusted code, and Virtualization-Based Security (VBS), […]
How To Configure a Linux Service to Start Automatically After a Crash or Reboot – Part 1: Practical Examples
This tutorial shows you how to configure system services to automatically restart after a crash or a server reboot. We cover the three most common init systems in this tutorial: System V, Upstart, and systemd.
