Pseudocode

Inputs, outputs, state, branches and failures written down before any framework syntax — pseudocode as a thinking tool, not a coding step.

Pseudocode Before Code

"function checkout(cart): validate cart, calculate total, create payment, create order, return confirmation" — five lines that say what checkout does, written before any framework decides how. The lines are where the missing decisions become visible.

Q · You understand the problem and are about to write checkout. What do you write first, and why not the code?

Pseudocode as a Thinking Tool

Pseudocode is not a notation for code you have not typed yet. It is a device for finding inputs you forgot, state you did not know you needed, branches you had not considered and failures you had not decided — and it works because it is too small to hide any of them.

Q · What is pseudocode actually for, and how do you write it so that it finds something rather than restating what you already knew?

Inputs, Outputs, State, Branches

The four things every operation has and pseudocode must show — what comes in, what goes out, what is remembered, where the path splits — plus failures, which are branches with consequences. Checkout under all five, and the chat app for contrast.

Q · What must a piece of pseudocode contain before it can be said to describe an operation, and how do you check it does?

From Pseudocode to Code

The pseudocode had six endings on one screen. The code has a route, a validator, an ORM, an SDK and a catch block — and, if you are not careful, one ending. What survives the translation, what the framework adds, and how to keep the branches visible.

Q · You have good pseudocode. How do you turn it into code without losing the decisions it made?