Some work updates reminded me of this poem I read a long time ago.

The Charge of the Light Brigade by Alfred, Lord Tennyson.

Half a league, half a league, Half a league onward, All in the valley of Death Rode the six hundred. “Forward, the Light Brigade! Charge for the guns!” he said. Into the valley of Death Rode the six hundred.

“Forward, the Light Brigade!” Was there a man dismayed? Not though the soldier knew Someone had blundered. Theirs not to make reply, Theirs not to reason why, Theirs but to do and die. Into the valley of Death Rode the six hundred.

Cannon to right of them, Cannon to left of them, Cannon in front of them Volleyed and thundered; Stormed at with shot and shell, Boldly they rode and well, Into the jaws of Death, Into the mouth of hell Rode the six hundred.

Flashed all their sabres bare, Flashed as they turned in air Sabring the gunners there, Charging an army, while All the world wondered. Plunged in the battery-smoke Right through the line they broke; Cossack and Russian Reeled from the sabre stroke Shattered and sundered. Then they rode back, but not Not the six hundred.

Cannon to right of them, Cannon to left of them, Cannon behind them Volleyed and thundered; Stormed at with shot and shell, While horse and hero fell. They that had fought so well Came through the jaws of Death, Back from the mouth of hell, All that was left of them, Left of six hundred.

When can their glory fade? O the wild charge they made! All the world wondered. Honour the charge they made! Honour the Light Brigade, Noble six hundred!

I often use a house as a metaphor for web development concepts.

A library is like going to Ikea. You already have a home, but you need a bit of help with furniture. You don’t feel like making your own table from scratch. Ikea allows you to pick and choose different things to go in your home. You are in control.

A framework, on the other hand, is like building a model home. You have a set of blueprints and a few limited choices when it comes to architecture and design. Ultimately, the contractor and blueprint are in control. And they will let you know when and where you can provide your input.

The technical difference between a framework and library lies in a term called inversion of control.

When you use a library, you are in charge of the flow of the application. You are choosing when and where to call the library. When you use a framework, the framework is in charge of the flow. It provides some places for you to plug in your code, but it calls the code you plugged in as needed.