orbit-oss/chalk
5
4
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Require Node.js 8

Browse source
This commit is contained in:
Sindre Sorhus 2019-03-12 20:11:31 +07:00
parent de2f4cd606
commit 3ef170b457
6 changed files with 56 additions and 54 deletions
Download patch file Download diff file Expand all files Collapse all files

37
examples/rainbow.js
View file

@ -3,36 +3,39 @@ const chalk = require('..');
const ignoreChars = /[^!-~]/g;
function rainbow(str, offset) {
if (!str || str.length === 0) {
return str;
const delay = milliseconds => new Promise(resolve => setTimeout(resolve, milliseconds));
function rainbow(string, offset) {
if (!string || string.length === 0) {
return string;
}
const hueStep = 360 / str.replace(ignoreChars, '').length;
const hueStep = 360 / string.replace(ignoreChars, '').length;
let hue = offset % 360;
const chars = [];
for (const c of str) {
if (c.match(ignoreChars)) {
chars.push(c);
const characters = [];
for (const character of string) {
if (character.match(ignoreChars)) {
characters.push(character);
} else {
chars.push(chalk.hsl(hue, 100, 50)(c));
characters.push(chalk.hsl(hue, 100, 50)(character));
hue = (hue + hueStep) % 360;
}
}
return chars.join('');
return characters.join('');
}
const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
async function animateString(str) {
async function animateString(string) {
console.log();
for (let i = 0; i < 360 * 5; i++) {
console.log('\u001B[1F\u001B[G ', rainbow(str, i));
await sleep(2); // eslint-disable-line no-await-in-loop
console.log('\u001B[1F\u001B[G', rainbow(string, i));
await delay(2); // eslint-disable-line no-await-in-loop
}
}
console.log();
animateString('We hope you enjoy the new version of Chalk 2! <3').then(() => console.log());
(async () => {
console.log();
await animateString('We hope you enjoy Chalk! <3');
console.log();
})();