Loading animation for node console

loader.js

// Adapted from https://stackoverflow.com/questions/34848505/how-to-make-a-loading-animation-in-console-application-written-in-javascript-or

/**
 * Create and display a loader in the console.
 *
 * @param {string} [text=""] Text to display after loader
 * @param {array.<string>} [chars=["⠙", "⠘", "⠰", "⠴", "⠤", "⠦", "⠆", "⠃", "⠋", "⠉"]]
 * Array of characters representing loader steps
 * @param {number} [delay=100] Delay in ms between loader steps
 * @example
 * let loader = loadingAnimation("Loading…");
 *
 * // Stop loader after 1 second
 * setTimeout(() => clearInterval(loader), 1000);
 * @returns {number} An interval that can be cleared to stop the animation
 */
function loadingAnimation(
    text = "",
    chars = ["⠙", "⠘", "⠰", "⠴", "⠤", "⠦", "⠆", "⠃", "⠋", "⠉"],
    delay = 100
) {
    let x = 0;

    return setInterval(function() {
        process.stdout.write("\r" + chars[x++] + " " + text);
        x = x % chars.length;
    }, delay);
}