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// ProfoundSyntax
function community() {
  return [
    'ask',
    'learn',
    'build',
    'share'
  ];
}
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TutorialGame DevelopmentJavaScript

Build a 2D Browser Game with JavaScript and HTML Canvas

0 replies

You do not need a game engine to start building games. In this tutorial, we will create Star Collector, a complete browser game using HTML, CSS, and JavaScript. The objective is simple: collect 10 yellow stars before the timer runs out, and avoid the red obstacles. Along the way, you will implement keyboard controls, character…

text
star-collector/
└── index.html
html
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Star Collector</title>

  <style>
    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 24px;
      background: #101827;
      color: #edf2ff;
      font: 16px/1.5 system-ui, sans-serif;
      text-align: center;
    }

    main {
      max-width: 800px;
      margin: auto;
    }

    canvas {
      display: block;
      width: 100%;
      height: auto;
      background: #18243a;
      border: 2px solid #627698;
      border-radius: 8px;
    }

    canvas:focus-visible {
      outline: 3px solid #67e8f9;
      outline-offset: 4px;
    }
…
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QuestionLinuxBash

Bash set -euo pipefail: why does my deploy script ignore some failures and exit on others?

0 replies

I'm hardening a small deploy script for a Linux VPS and I'm running into the classic "set -euo pipefail" surprises. The script pulls a release, runs a build, and restarts a service. I want it to fail fast, but a few things behave differently than I expect. Here's a trimmed version:

bash
#!/usr/bin/env bash
set -euo pipefail

RELEASE_DIR="/srv/app/releases/$(date +%Y%m%d%H%M%S)"
mkdir -p "$RELEASE_DIR"

# 1) grep returning 1 (no match) kills the script here
COUNT=$(grep -c "ERROR" /var/log/app/build.log | head -n 1)

# 2) this function fails inside an if, but the script keeps going
deploy_step() {
  cp -r ./build/. "$RELEASE_DIR"
  false   # simulated failure
  echo "should not print"
}

if deploy_step; then
  echo "deploy ok"
fi

systemctl restart app.service

What I'm trying to…

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DiscussionDatabasesSQL

Parameterized queries in PHP, Python & Ruby: what is your default pattern for dynamic SQL?

0 replies

I work across PHP, Python, Ruby and plain SQL, and one thing I keep noticing in code reviews is that every stack has its own "safe" way to build queries, and people still end up concatenating strings when a query gets dynamic (search filters, ORDER BY, IN lists, etc.). [PSYOUTUBE|2eC8-9EnBPE] So I'm curious what everyone…

php
<?php
$stmt = $pdo->prepare('SELECT id, name FROM users WHERE email = :email');
$stmt->execute([':email' => $email]);
$user = $stmt->fetch(PDO::FETCH_ASSOC);
python
cur.execute("SELECT id, name FROM users WHERE email = ?", (email,))
user = cur.fetchone()
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QuestionWeb DevelopmentPHP

PHP API Request Times Out Even Though Endpoint Works

3 replies
php

<?php if (is_user_logged_in());

?>

I am trying to make a PHP request to an external API, but the request periodically times out even though the API endpoint itself appears to be online and responding normally when I test it directly. The problem does not happen on every request. Some requests complete in less than a second, while others wait…

php
<?php

$url = 'https://api.example.com/products';

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CONNECTTIMEOUT => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTPHEADER => <span class="text-token-text-primary cursor-text rounded-sm" data-placeholder-token="true">[
        'Accept: application/json',
    ]</span>,
]);

$response = curl_exec($ch);

if ($response === false) {
    echo 'cURL Error: ' . curl_error($ch);
} else {
    $data = json_decode($response, true);

    echo '<pre>';
    print_r($data);
    echo '</pre>';
}

curl_close($ch);
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