Xah Talk Show 2025-07-19 Ep684 JavaScript Coding, Convert Alphabets ABC to Unicode Squared Alphabets 🄰 🄱 🄲

• https://youtu.be/Rd4LuaXDs0M

• write a JavaScript app, transcript english letters to squared version.
• Unicode: Squared Letters 🅰 🅱 🆗

𝕒𝕓𝕔 𝕕𝕖𝕗. 𝕤𝕠𝕞𝕖𝕥𝕙𝕚𝕟𝕘.

• Unicode Upside-Down Text ɐ q ɔ
• Unicode: Math Letters 𝕬𝕭𝕮 𝒜ℬ𝒞 𝔸𝔹ℂ
• Unicode: Rune ᚠ ᚢ ᛋ ᛟ
• Unicode: Braille ⠮

• JS DOM: input radio button 🔘
• JS: String.prototype.toLowerCase