1'use strict'; 2 3const common = require('../common.js'); 4 5const bench = common.createBenchmark(main, { 6 type: ['ascii', 'mixed', 'emojiseq', 'fullwidth'], 7 n: [10e4] 8}, { 9 flags: ['--expose-internals'] 10}); 11 12function main({ n, type }) { 13 const { getStringWidth } = require('internal/util/inspect'); 14 15 const str = ({ 16 ascii: 'foobar'.repeat(100), 17 mixed: 'foo'.repeat(100) + '��' + 'bar'.repeat(100), 18 emojiseq: '��������������������������������'.repeat(10), 19 fullwidth: '你好'.repeat(150) 20 })[type]; 21 22 bench.start(); 23 for (let j = 0; j < n; j += 1) 24 getStringWidth(str); 25 bench.end(n); 26} 27