Asaf Posts - Deno

Asaf

•Created by Asaf on 5/23/2024 in #help

Deno write large file

How can I convert this node code to Deno

import fs from 'node:fs';

function* largeArrayGenerator() {
    for (let i = 0; i < 1e9; i++) {
        yield i;
    }
}

const writeStream = fs.createWriteStream('largeArray-node.txt');

for (const i of largeArrayGenerator()) {
    const data = `${i}\n`;
    if (!writeStream.write(data)) {
        await new Promise(resolve => writeStream.once('drain', resolve));
    }
}

import fs from 'node:fs';

function* largeArrayGenerator() {
    for (let i = 0; i < 1e9; i++) {
        yield i;
    }
}

const writeStream = fs.createWriteStream('largeArray-node.txt');

for (const i of largeArrayGenerator()) {
    const data = `${i}\n`;
    if (!writeStream.write(data)) {
        await new Promise(resolve => writeStream.once('drain', resolve));
    }
}

how can I write large file in Deno and write only when the highWaterMark reached so I can apply draining?

8 replies

DDeno

•Created by Asaf on 1/4/2024 in #help

deployctl error: TypeError: request or response body error

Hey, I'm getting an error when trying to deploy to a project error: TypeError: request or response body error: error reading a body from connection: stream error received: unexpected internal error encountered It stucks on ⠴ Deploying... (100.0%) and after sometime it throw the error I mentioned above I created new project and this is my file

import { emojify } from 'npm:node-emoji@2';

Deno.serve(() => new Response(emojify(':t-rex: :heart: NPM')));

import { emojify } from 'npm:node-emoji@2';

Deno.serve(() => new Response(emojify(':t-rex: :heart: NPM')));

It was working great yesterday, anyone can assist? I've noticing its not working whenever I specify a npm module import

4 replies