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@umcconnell
Created November 26, 2019 18:00
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Loading animation for node console
// 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);
}
@Kexplx
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Kexplx commented Feb 16, 2022

Nice idea using the braille tokens. Thanks

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