export function capitalize(string) {
	console.assert(typeof string === "string", string);

	return string.substring(0, 1).toUpperCase() + string.substring(1);
}



export function compareNatural(a, b) {
	console.assert(typeof a === "string", a);
	console.assert(typeof b === "string", b);

	const locales = undefined;
	return String(a).localeCompare(String(b), locales, {numeric: true});
}



export function substitute(template, substitutions, combine) {
	console.assert(typeof template === "string", template);
	console.assert(typeof substitutions === "object", substitutions);
	console.assert(typeof combine === "function", combine);

	let substitute = false;
	for (let part of template.split(/(%)(.+?)(%)/)) {
		if (part === "%")
			substitute = !substitute;
		else if (substitute)
			combine(substitutions[part]);
		else
			combine(part);
	}
}