cowsay

cow.js

let dashes = "";
let callback;
fixLineBreak = c => {
	if (c[0].length < 41) {
		callback = e => {
			let su = '< ' + e + ' >'
			return su
		}
	} else {
		callback = (e, index, array) => {
			let chars2use = ['| ', ' |'];
			if (index === 0) chars2use = ['/ ', ' \\'];
			if (index === array.length - 1) chars2use = ['\\ ', ' /'];
			let su = chars2use[0] + e + chars2use[1]
			// j'adore javascript
			if (e.length < 41) {
				su = chars2use[0] + e + " ".repeat(41 - e.length) + chars2use[1];
			}
			return su
		}
	}
	return c.map(callback)
}

cowsay = t => { 
    dashes = "";
	let length = t.length;
	if ( length > 41 ) length = 41;
	dashes = "-".repeat(length + 2);
	dashes = " " + dashes;
	return "\n" + dashes.replace(/-/g, "_") + "\n" + 
    fixLineBreak(t.match(/.{1,41}/g)).join("\n") + '\n' + 
	dashes + "\n" + 
	"       \\    ^__^" + "\n" +
	"         \\  (oo)\_______" + "\n" +
	"            (__)\       )\\/\\" + "\n" +
	"                ||----w |" + "\n" +
	"                ||     ||";
}