Daily - January 15, 2020

The underlying concept of design patterns has been around in the software engineering industry since the very beginning, but they weren’t really so formalised. Design Patterns: Elements Of Reusable Object-Oriented Software written by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides — the famous Gang of Four (GoF)—was instrumental in pushing the formalised concept of design patterns in software engineering. Now, design patterns are an essential part of software development and have been so for a long time.

javascript programming

Abs Workouts at Home | 4 Core Workouts You Can Do At Home

How to do each workout: See the exercises and circuits below. Repeat each exercise for 30 seconds, followed by a 15-second rest between moves, for a 5-minute circuit. You can add one circuit to the end of your run as a finisher or use it as a part of your cross-training workouts.

X-Mountain Climber
Squat Thrust
Plank March
Windshield Wiper
Crab Kick

abs fitness