wp-node.js

wp-node.js

'use strict';
const fs = require('fs');
const startTime = Date.now();
const log = (msg) => setImmediate(() => { process.stdout.write(msg); });
fs.readFile("/dev/stdin", 'utf8', (err, text) => {
    const map = {}, sorted = [], lines = text.split("\n");
    for (let i=0; i<lines.length; i++) {
        const words = lines[i].split(' ');
        for (let j=0; j<words.length; j++) {
            if (words[j].length === 0) continue;
            if (typeof map[words[j]] === 'undefined') map[words[j]] = 1;
            else map[words[j]]++;
        }
    }
    for (let word in map) sorted.push([word, map[word]]);
    sorted.sort((a, b) => b[1] - a[1]);
    for (let i=0; i<sorted.length; i++) log(`${sorted[i][0]}: ${sorted[i][1]}\n`);
    const endTime = Date.now();
    log(`Time: ${endTime - startTime}ms\n`);
});