Function interpolate

lib/compile/codegen/code.ts:139–143

(x?: string | string[] | number | boolean | null)

// TODO do not allow arrays here
function interpolate(x?: string | string[] | number | boolean | null): SafeExpr | string {
  return typeof x == "number" || typeof x == "boolean" || x === null
    ? x
    : safeStringify(Array.isArray(x) ? x.join(",") : x)
}

export function stringify(x: unknown): Code {
  return new _Code(safeStringify(x))