Dependency Injection in JavaScript
In building a house, after the architecture of the house has been drawn and accepted, everything built must fit the drawn architecture. A major change along the way may result in a complete tear-down and rebuild from scratch process. Once the building has been built with cement, it cannot be changed to wood. Building physical structures is a rigid process. Building software is different. Software, unlike physical structures, is expected to be flexible. If the requirements for a software being built changes along the way, it is expected that the changes are implemented without the need to tear it all down. New features, bug fixes, a change in the design system or database, all modify software without the need to tear it all down. ...