Naming

Casing (@typescript-eslint/naming-convention)

Element	Form	Example
function, local variable, parameter	camelCase	filletSetback, interiorAngle
module constant (top-level const)	UPPER_CASE	SVG_DECIMALS, CLOSE_PATH
type, alias	PascalCase	Point, ViewBox
boolean (variable, parameter)	prefix + PascalCase	isClosed, hasPorts, canConnect

Boolean prefixes: is, has, can, should, are, was, will, did, does.

Length (id-length)

2 to 40 characters. Single letters are reserved for standard mathematical variables: a b c d h i j k n p q r s t u v w x y z.

Denied names (id-denylist)

tmp, temp, info, obj, val, res, ret, stuff, thing, util(s), helper(s), manager, foo, bar, baz: they name no concept.

Per kind (local/kind-naming)

@kind	Rule	Good	Rejected
procedure	starts with a verb from eslint/settings/verbs.ts	renderShape, mountPlayground	shapeRenderer
format	reads as a conversion: xToY, toX, fromX, parseX, formatX, serializeX…	polygonToPathData	svgPath
math, geometry, domain	names the concept, without vague verb (get, compute, calculate, calc, make, do, handle, process, perform)	dot, filletSetback	computeDot, getSetback
all	returns a boolean ⇔ starts with a predicate word (is, has, can, should, are, contains, includes, intersects, equals)	canConnect	connectable(): boolean, isPort(): Port

To add a procedure verb: insert it (sorted) in eslint/settings/verbs.ts rather than bending a name.

Files

The file is named like its export (see files.md).