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