index.ts

import isBrowser from "is-in-browser";
import { yellow } from "chalk";

declare const require;
let util: { inspect: (input: string, options?: { colors?: boolean; }) => string };
let inBrowserTimezoneWarningShown = false;

if (isBrowser) {
    util = { inspect: (input, options) => input };
} else {
    util = require("util");
}

export const defaults = {
    locale: "en-US",
    timeZone: "America/Chicago",
}

export function inspect(...args) {
    if (isBrowser && !inBrowserTimezoneWarningShown) {
        inBrowserTimezoneWarningShown = true;   

        // Ref: https://stackoverflow.com/q/30377607
        console.warn("logspect warning: Timezones are not supported in all browsers. Timestamp will default to the browser's current timezone.");
    }

    const time = yellow(new Date().toLocaleTimeString(defaults.locale, { 
        timeZone: isBrowser ? undefined : defaults.timeZone, 
        timeZoneName: "short" 
    }));

    console.log(time, ...args.map(a => typeof(a) === "string" ? a : util.inspect(a, { colors: true })));
}

export default inspect;