maplair/dist/esm/core/Util.js

JavaScript library for mobile-friendly interactive maps

import { __exportAll } from "../_virtual/_rolldown/runtime.js";
//#region src/core/Util.js
var Util_exports = /* @__PURE__ */ __exportAll({
	falseFn: () => falseFn,
	formatNum: () => formatNum,
	lastId: () => lastId,
	setOptions: () => setOptions,
	splitWords: () => splitWords,
	stamp: () => stamp,
	template: () => template,
	throttle: () => throttle,
	wrapNum: () => wrapNum
});
let lastId = 0;
function stamp(obj) {
	if (!("_maplair_id" in obj)) obj["_maplair_id"] = ++lastId;
	return obj._maplair_id;
}
function throttle(fn, time, context) {
	let lock, queuedArgs;
	function later() {
		lock = false;
		if (queuedArgs) {
			wrapperFn.apply(context, queuedArgs);
			queuedArgs = false;
		}
	}
	function wrapperFn(...args) {
		if (lock) queuedArgs = args;
		else {
			fn.apply(context, args);
			setTimeout(later, time);
			lock = true;
		}
	}
	return wrapperFn;
}
function wrapNum(x, range, includeMax) {
	const max = range[1], min = range[0], d = max - min;
	return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
}
function falseFn() {
	return false;
}
function formatNum(num, precision) {
	if (precision === false) return num;
	const pow = 10 ** (precision === void 0 ? 6 : precision);
	return Math.round(num * pow) / pow;
}
const WHITESPACE_RE = /\s+/;
function splitWords(str) {
	return str.trim().split(WHITESPACE_RE);
}
function setOptions(obj, options) {
	if (!Object.hasOwn(obj, "options")) obj.options = obj.options ? Object.create(obj.options) : {};
	for (const i in options) if (Object.hasOwn(options, i)) obj.options[i] = options[i];
	return obj.options;
}
const templateRe = /\{ *([\w_ -]+) *\}/g;
function template(str, data) {
	return str.replace(templateRe, (str, key) => {
		let value = data[key];
		if (value === void 0) throw new Error(`No value provided for variable ${str}`);
		else if (typeof value === "function") value = value(data);
		return value;
	});
}
//#endregion
export { Util_exports, falseFn, formatNum, lastId, setOptions, splitWords, stamp, template, throttle, wrapNum };

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