current/benchmark/misc/getstringwidth.js
'use strict';
const common = require('../common.js');
const bench = common.createBenchmark(main, {
type: ['ascii', 'mixed', 'emojiseq', 'fullwidth'],
n: [10e4]
}, {
flags: ['--expose-internals']
});
function main({ n, type }) {
const { getStringWidth } = require('internal/util/inspect');
const str = ({
ascii: 'foobar'.repeat(100),
mixed: 'foo'.repeat(100) + '๐' + 'bar'.repeat(100),
emojiseq: '๐จโ๐จโ๐งโ๐ฆ๐จโ๐ฉโ๐ฆโ๐ฆ๐จโ๐ฉโ๐งโ๐ง๐ฉโ๐ฉโ๐งโ๐ฆ'.repeat(10),
fullwidth: 'ไฝ ๅฅฝ'.repeat(150)
})[type];
bench.start();
for (let j = 0; j < n; j += 1)
getStringWidth(str);
bench.end(n);
}