canvacard/plugins/abbrev.js

Powerful image manipulation package for beginners.

module.exports = num => {
	if (!num || isNaN(num)) return "0";
	if (typeof num === "string") num = parseInt(num);

	if (typeof Intl !== "undefined") {
		return new Intl.NumberFormat("en", { notation: "compact" }).format(num);
	} else {
		let decPlaces = Math.pow(10, 1);
		var abbrev = ["K", "M", "B", "T"];
		for (var i = abbrev.length - 1; i >= 0; i--) {
			var size = Math.pow(10, (i + 1) * 3);
			if (size <= num) {
				num = Math.round((num * decPlaces) / size) / decPlaces;
				if (num == 1000 && i < abbrev.length - 1) {
					num = 1;
					i++;
				}
				num += abbrev[i];
				break;
			}
		}
		return `${num}`;
	}
};