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Chikyu Earth地球

A line-drawn globe of the world's countries that turns at the Earth's own rate, with an optional realistic Earth from space and markers for any place.

Chikyu is the Japanese word 地球 for the Earth. About the name

Contents

Reference · The data door: hand the package your own maps of the Earth or orbit data as a source with its own licence and credit, and see whose data is on the screen

validateSourcefunction

Refuses a source that cannot be shown honestly: it throws a TypeError at once, when a source is added, not at the first draw. An empty credit (either language), a licence with no name or no link, a bad or already used id, a missing name, page or day, or a missing function is refused.

Import it

import { validateSource } from "@johnmorrisdotca/chikyu-earth/door";

Definition

function validateSource(source: unknown, taken?: Iterable<string>): asserts source is DataSource

Parameters

NameTypeDescription
sourceunknown

What the caller handed in.

taken (optional)Iterable<string>

The ids already in the view, so that a clash is refused.

Examples

import { validateSource } from "./data-door.ts";

validateSource(mySource, view.sources.map((one) => one.info.id)); // throws TypeError: source "mine": the credit is empty (en)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.51.1.