Lewis Nakao lewdev

Download text to a file

Code that will take a filename and text data and have the user download it.

Run it in your address bar (Bookmarklet)

data:text/html,<input id="filenameInput" value="file-to-save.txt"/><button onclick="downloadToFile(filenameInput.value, contentInput.value)">Download File</button><textarea id="contentInput" style="width:100%" rows="10">Content</textarea><script>const downloadToFile=(filename,content)=>{if(!content){alert("No content to save!");return;}
const a=document.createElement("a");const file=new Blob([content],{type:"text/plain"});a.href=URL.createObjectURL(file);a.download=filename;a.click();URL.revokeObjectURL(a.href);};</script>

😼 Markdown Editor in your address bar (🔖 bookmarklet)

A live markdown editor in a bookmarklet. Preview is updated on every key press. I should implement a delay.

It's a lot of code, but I like the nature of bookmarklets where nothing is retained after you close it.

I often find myself just wanting to see what the markdown looks like, which is why I built this.

I used Snarkdown, a 1kb markdown parser. I did try to make my own parser but I gave up.

⌨ Code, Input, Expected, & Output for Testing

A JavaScript code testing that emulates code.golf, LeetCode, HackerRank, etc.

Press Ctrl + Enter to run the test.

I find myself running this kind of test pattern and wanting to avoid using their UIs. There are limiations there including speed and rate of testing. Using their system is too slow.

For now this only runs one test case and compares the output with the expected values.

🔢 How to convert JSON to an SQL Insert Statement

I found some issues with this article, so I decided to write my own article about it.

This page will explain the solution to convert this:

{
  "firstName": "James",
  "lastName": "Smith",
 "strength": 70,

🐱‍👤 Ninja Phone By ChatGPT

In a casual conversation, someone mentioned making a "Ninja Phone" game and I wondered what ChatGPT would give me out of that.

It didn't give anything I expected but it was a somewhat working game.

The limitations are that ChatGPT has a limit to how much it will output, so adding code-golfed version helps with getting more out of it.

The code-golfing ability was okay. When I said "minified," It didn't understand what I meant, so I changed it to code-golfed version and it worked.

🏫📄 Worksheet Generators

For inspiration and ideas for my Math Homework Generator, I figured that I should start a list of pages I should look through eventually to learn about what's out there and what might be lacking. MHG is often found in other lists which is how I found these links.

Custom Resource Makers - Worksheet Generators (Source)

🦘👨‍🔧 Super Mario Bros in your URL

This was made by xem or @MaximeEuziere on twitter.

Source

Copy-paste the code below into your address bar to run it. Unfortunately, making it compatible to the URL, the size of the app explodes to 1560 characters.

data:text/html,

	<!DOCTYPE html>
	<head><title>🐶 Pet Sim</title></head>
	<body>
	<div id="start">
	<h2>🐶 What would you like to name your pet?</h2>
	<input id="n" onkeyup="event.keyCode===13&&n.value?start_game(n.value):null"/>
	<button onclick="start_game(n.value)">Start</button>
	</div>

	<div id="controls" style="display:none">

	<pre id=o></pre>
	<script>
	const TIME = [1e3, "s", 6e4, "min", 36e5, "hr", 864e5, "d", 2592e6, "wk", 2592e6, "mo", 31536e6, "yr"];

	const dateDistance = dateStr => {
	const now = new Date().getTime();
	let diff = now - new Date(dateStr).getTime();
	let agoOrUntil = " ago";
	if (diff < 0) { agoOrUntil = " until"; diff = Math.abs(diff); }
	for (let i = 12; i >= 0; i-=2) {