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Coding Concepts

Concept Library

Reusable little machines you can run by name, the core building block for organising code and avoiding repetition.

Boxes on Jiki's shelves that store a value with a label so you can get it back out later in your code.

Pieces of text wrapped in quotes (a letter, a word, a sentence, or a whole paragraph) that Jiki writes on paper.

Two ways to specify any color you want. RGB mixes red, green, and blue light. HSL uses hue, saturation, and lightness.

Breaking out of strict top-to-bottom code flow by telling Jiki to run the same block of code over and over.

Comparing values with operators like <, >, and === to produce booleans that decide whether a block of code runs.

An ordered chain of elements (strings, numbers, booleans, or anything else) held together as one value Jiki can pass around.

A spiral notebook page where each entry has a key on the left and its value on the right, giving you labelled data instead of a list.

Tricking the eye into seeing movement by repainting the background and redrawing each frame in a slightly new position.

Using Math.randomInt with a minimum and maximum to get a different number each time the function runs.

Understanding how curly brackets create their own set of shelves, so variables only live as long as their block does.

Different starting conditions an exercise runs your single piece of code against, so you have to make it work for all of them.

Functions that belong to a value and are called with dot notation, like "Jeremy".includes("e") or "Jeremy".toUpperCase().

Static facts about a value, accessed with dot notation and no brackets, like .length to find how many letters a string has.

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