I have the following Node.js program that runs through text and outputs the top 25 most frequently used words basically. I need to follow a certain style and everything seems right but I get the following error with the await keyword when I run the program:
` for await (const chunk of stream) { ^^^^^
SyntaxError: Unexpected reserved word at ESMLoader.moduleStrategy (node:internal/modules/esm/translators:119:18) at ESMLoader.moduleProvider (node:internal/modules/esm/loader:468:14) at async link (node:internal/modules/esm/module_job:67:21)`
Here is the full code below:
` const fs = require('fs');
const stopwords = new Set(fs.readFileSync('../stop_words.txt').toString().split (',').concat(Array.from({ length: 26 }, (_, i) => String.fromCharCode(i + 97))));
function* characters(filename) {
const stream = fs.createReadStream(filename, { highWaterMark: 1024 });
for await (const chunk of stream) {
for (const c of chunk) {
yield String.fromCharCode(c);
}
}
}
function* all_words(filename) {
let word = '';
for (const c of characters(filename)) {
if (/\w/.test(c)) {
// We found the start or middle of a word
word += c.toLowerCase();
} else if (word) {
// We found the end of a word, emit it
yield word;
word = '';
}
}
if (word) yield word; // Emit the last word
}
function* non_stop_words(filename) {
for (const w of all_words(filename)) {
if (!stopwords.has(w)) {
yield w;
}
}
}
function* count_and_sort(filename) {
const freqs = {};
let i = 1;
for (const w of non_stop_words(filename)) {
freqs[w] = freqs[w] + 1 || 1;
if (i % 5000 === 0) {
yield Object.entries(freqs).sort((a, b) => b[1] - a[1]);
}
i++;
}
yield Object.entries(freqs).sort((a, b) => b[1] - a[1]);
}
`
I couldn't find a solution to this error for my particular situation. Please help me fix my usage of await here specifically to get my program running.
